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CVE-2026-31971

HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_ARRAY_LEN` method, the `cram_byte_array_len_decode()` failed to validate that the amount of data being unpacked matched the size of the output buffer where it was to be stored. Depending on the data series being read, this could result either in a heap or a stac
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d17b6794e1f235b7b4df2a3c10a845163c856d4909adae6c0d698d73acc8a30f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 4 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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-1284","description":"CWE-1284: Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/3/descriptions/0

{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/2/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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

4 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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-1284","description":"CWE-1284: Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/3/descriptions/0
{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /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:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/samtools/htslib/commit/01cd003b46fa2ebea4d9be5475b11217eb4c11be","tags":["x_refsource_MISC"],"url":"https://github.com/samtools/htslib/commit/01cd003b46fa2ebea4d9be5475b11217eb4c11be"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /containers/cna/references/1
{"name":"https://github.com/samtools/htslib/security/advisories/GHSA-jvx4-4wq7-6fmh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/samtools/htslib/security/advisories/GHSA-jvx4-4wq7-6fmh"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a5297b62a81d38424efed55e2e0a767d528e2475fc82e41ec5fe4b08a61edddf · sha256:f4c07e6cc56c7b0a… · /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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