Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-31963

HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. As one method of removing redundant data, CRAM uses reference-based compression so that instead of storing the full sequence for each alignment record it stores a location in an external reference sequence along with a list of differences to the reference at that location as a sequence of "features". When decoding these features, an out-by-one error in a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f279264f4e92fa5c48dce4d2ff8aaf388c35ba1b79040f8a709e9ead25dcfbcb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-129","description":"CWE-129: Improper Validation of Array Index","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"htslib","vendor":"samtools","versions":[{"status":"affected","version":"< 1.21.1"},{"status":"affected","version":">= 1.22, < 1.22.2"},{"status":"affected","version":"= 1.23"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.8,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-129","description":"CWE-129: Improper Validation of Array Index","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/samtools/htslib/commit/8bcc9907be0f945ddc31796d64f078fa05456acd","tags":["x_refsource_MISC"],"url":"https://github.com/samtools/htslib/commit/8bcc9907be0f945ddc31796d64f078fa05456acd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /containers/cna/references/1
{"name":"https://github.com/samtools/htslib/security/advisories/GHSA-qgqh-h2q9-7w3c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/samtools/htslib/security/advisories/GHSA-qgqh-h2q9-7w3c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:191c227e41b7b1445707523d1d5ca21153b6c15c14fabd017f3c42c6880d40b8 · sha256:bfdc2a5f542f5825… · /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.

← Back to CVE Explorer