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CVE-2026-41509

CROSS implementation contains reference and optimized implementations of the CROSS post-quantum signature algorithm. Prior to commit fc6b7e7, there is a buffer overflow in crypto_sign_open() caused by an underflow of the integer mlen. This issue has been patched via commit fc6b7e7.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:463361f3a2e619976e1b7fce78e99c808ce36141e8191d169b1cf9a17fe2e9a1
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-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/problemTypes/1/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:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"CROSS-implementation","vendor":"CROSS-signature","versions":[{"status":"affected","version":"< fc6b7e78cdf789bb5c395a81dc601356f1383da0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","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:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 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:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/problemTypes/1/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:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/CROSS-signature/CROSS-implementation/commit/fc6b7e78cdf789bb5c395a81dc601356f1383da0","tags":["x_refsource_MISC"],"url":"https://github.com/CROSS-signature/CROSS-implementation/commit/fc6b7e78cdf789bb5c395a81dc601356f1383da0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /containers/cna/references/1
{"name":"https://github.com/CROSS-signature/CROSS-implementation/security/advisories/GHSA-w72c-hgx8-p7cv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/CROSS-signature/CROSS-implementation/security/advisories/GHSA-w72c-hgx8-p7cv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:96c26457224f3dddc95803915d23c16de1d85f21dc1d8575eed9aee17f9dc2cf · sha256:e3225857562d1803… · /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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