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CVE-2026-34165

go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files. This issue has been patched in version 5.17.1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f41826face15fb1d9288b2faa1a750a43f13c05551dc06057600986c4ed05172
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-191","description":"CWE-191: Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"go-git","vendor":"go-git","versions":[{"status":"affected","version":">= 5.0.0, < 5.17.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-191","description":"CWE-191: Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/go-git/go-git/releases/tag/v5.17.1","tags":["x_refsource_MISC"],"url":"https://github.com/go-git/go-git/releases/tag/v5.17.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/references/1
{"name":"https://github.com/go-git/go-git/security/advisories/GHSA-jhf3-xxhw-2wpp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/go-git/go-git/security/advisories/GHSA-jhf3-xxhw-2wpp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6c9196e0abac50d381a1a4285f037beb618140301a3aa5fd6f32717a90060074 · sha256:cb2e64eb42902b2a… · /containers/cna/references/0

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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