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CVE-2026-26158

A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bdc54a0f87cf387525985e3becdea8f5f4a2c85fcaab31e61528d4d12c051771
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 5 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"busybox-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.37.0-7.2.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/affected/0

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"busybox-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.37.0-7.2.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/affected/1

{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/1/affected/0

Affected products and versions

5 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"busybox","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"busybox-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.37.0-7.2.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/affected/0
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"busybox-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.37.0-7.2.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"busybox","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/affected/1
{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-73","description":"External Control of File Name or Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/problemTypes/0/descriptions/0
{"cweId":"CWE-73","description":"External Control of File Name or Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/problemTypes/0/descriptions/0

Source references

9 source assertions
{"name":"RHSA-2026:13831","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:13831"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/references/0
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:13831"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-26158"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/references/0
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-26158"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/references/1
{"name":"RHBZ#2439040","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439040"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/references/1
{"name":"RHBZ#2439040","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439040"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/references/2
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/1/references/0
{"url":"https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/cna/references/3
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26158.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:03abcb222dcf469dc2f5897b68d5b2d06cf33a095d79087c833e041c52cee103 · sha256:76664c269c68c4ef… · /containers/adp/2/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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