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CVE-2026-7598

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6c3d0f0ddf26c13ab49591aa5e0fb6611b74301765406bea555e5450bbfe7966
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:trusted_profile_analyzer:2"],"defaultStatus":"affected","packageName":"rhtpa/rhtpa-trustification-service-rhel9","product":"Red Hat Trusted Profile Analyzer","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"libssh2-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.11.1-5.1.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/1

{"cpes":["cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*"],"product":"libssh2","vendor":"n/a","versions":[{"status":"affected","version":"1.11.0"},{"status":"affected","version":"1.11.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"libssh2","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift_update_service:5"],"defaultStatus":"unaffected","packageName":"openshift-update-service/openshift-update-service-rhel8","product":"Red Hat OpenShift Update Service","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"affected","packageName":"libssh2","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"rust-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.95.0-5.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"conmon-rs","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/4
cvss · 5 assertions

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/metrics/1/cvssV3_1

{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/0/cvssV4_0
cwe · 3 assertions

{"cweId":"CWE-189","description":"Numeric Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

8 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:trusted_profile_analyzer:2"],"defaultStatus":"affected","packageName":"rhtpa/rhtpa-trustification-service-rhel9","product":"Red Hat Trusted Profile Analyzer","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"libssh2-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.11.1-5.1.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/1
{"cpes":["cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*"],"product":"libssh2","vendor":"n/a","versions":[{"status":"affected","version":"1.11.0"},{"status":"affected","version":"1.11.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"libssh2","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift_update_service:5"],"defaultStatus":"unaffected","packageName":"openshift-update-service/openshift-update-service-rhel8","product":"Red Hat OpenShift Update Service","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"affected","packageName":"libssh2","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"rust-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.95.0-5.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"conmon-rs","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/affected/4

Provider-owned CVSS observations

5 source assertions
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-189","description":"Numeric Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-190","description":"Integer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/problemTypes/0/descriptions/0

Source references

12 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:16736"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/references/4
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:7021"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-7598"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/references/0
{"name":"RHBZ#2464597","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464597"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/references/1
{"tags":["product"],"url":"https://github.com/libssh2/libssh2/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/4
{"tags":["issue-tracking","patch"],"url":"https://github.com/libssh2/libssh2/pull/1858"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/3
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7598.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/1/references/2
{"tags":["exploit"],"url":"https://vuldb.com/submit/805564"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/adp/0/references/0
{"name":"Submit #805564 | libssh2 <= 1.11.1 Integer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/805564"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/2
{"name":"VDB-360555 | libssh2 userauth.c userauth_password integer overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/360555"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/0
{"name":"VDB-360555 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/360555/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ef8c7728884077d90e330f9a21afccdb93df1e7bd35b7c050eb986aaf1a37c · sha256:8a8d132cb7f231ac… · /containers/cna/references/1

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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