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CVE-2026-23479

Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:220e5f7e2afcc5bacfea73044dd17c1a8e70a2efc1ae16bf54c45750fcf72cf5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_eus:9.6"],"defaultStatus":"affected","packageName":"redis:7","product":"Red Hat Enterprise Linux 9.6 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9060020260602115714.9","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"boost-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.90.0-7.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"valkey-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9.0.4-0.1.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/5

{"product":"redis","vendor":"redis","versions":[{"status":"affected","version":">= 7.2.0, < 8.6.3"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el10_2","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"redis:7","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9080020260521083756.9","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"redis:6/redis","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/7

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el9_8","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"redis","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/8

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el10_0","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/1
cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-416","description":"CWE-416: Use After Free","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-416","description":"Use After Free","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

10 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_eus:9.6"],"defaultStatus":"affected","packageName":"redis:7","product":"Red Hat Enterprise Linux 9.6 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9060020260602115714.9","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"boost-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.90.0-7.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"valkey-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9.0.4-0.1.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/5
{"product":"redis","vendor":"redis","versions":[{"status":"affected","version":">= 7.2.0, < 8.6.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el10_2","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"redis:7","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"9080020260521083756.9","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"redis:6/redis","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/7
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el9_8","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"redis","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/8
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"defaultStatus":"affected","packageName":"valkey","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:8.0.9-1.el10_0","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-416","description":"CWE-416: Use After Free","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-416","description":"Use After Free","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

12 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:14316"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/9
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:25216"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/4
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:25219"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/6
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:25925"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/7
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26306"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/5
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26540"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/3
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:7662"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/8
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-23479"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/0
{"name":"RHBZ#2466780","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2466780"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/1
{"name":"https://github.com/redis/redis/releases/tag/8.6.3","tags":["x_refsource_MISC"],"url":"https://github.com/redis/redis/releases/tag/8.6.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/references/1
{"name":"https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23479.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e8a0e31507a32bc006ff6068c5f0621549ae743aeb8a49cacafb33f6a079820 · sha256:ded0a12fa8041759… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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