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CVE-2026-24785

Clatter is a no_std compatible, pure Rust implementation of the Noise protocol framework with post-quantum support. Versiosn prior to2.2.0 have a protocol compliance vulnerability. The library allowed post-quantum handshake patterns that violated the PSK validity rule (Noise Protocol Framework Section 9.3). This could allow PSK-derived keys to be used for encryption without proper randomization by self-chosen ephemeral randomness, weakening security guarantees and potentially allowing catastroph
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:36b0ff9ae56873207a9620bc5ae624b4357e018849214eb7c744e683c4204ed2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"clatter","vendor":"jmlepisto","versions":[{"status":"affected","version":"< 2.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":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:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-327","description":"CWE-327: Use of a Broken or Risky Cryptographic Algorithm","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/jmlepisto/clatter/commit/b65ae6e9b8019bed5407771e21f89ddff17c5a71","tags":["x_refsource_MISC"],"url":"https://github.com/jmlepisto/clatter/commit/b65ae6e9b8019bed5407771e21f89ddff17c5a71"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/references/1
{"name":"https://github.com/jmlepisto/clatter/security/advisories/GHSA-253q-9q78-63x4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jmlepisto/clatter/security/advisories/GHSA-253q-9q78-63x4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/references/0
{"name":"https://noiseprotocol.org/noise.html#validity-rule","tags":["x_refsource_MISC"],"url":"https://noiseprotocol.org/noise.html#validity-rule"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ac7d3f2eaa55e25d4f78163241cc671ae4fee705a329a9005d5b2f081a73c75c · sha256:84f1a47333a590fe… · /containers/cna/references/2

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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