CVE Explorer
CVE-2026-31814
Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. From 0.13.0 to before 0.13.9, a specially crafted WindowUpdate can cause arithmetic overflow in send-window accounting, which triggers a panic in the connection state machine. This is remotely reachable over a normal network connection and does not require authentication. This vulnerability is fixed in 0.13.9.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"rust-yamux","vendor":"libp2p","versions":[{"status":"affected","version":">= 0.13.0, < 0.13.9"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:3289e388a4d118b8545f2ebe2b7827fcb348d4da740d9cbe5f0d293bbb45ceb6 · sha256:cc996e7d27342a55… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"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:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:3289e388a4d118b8545f2ebe2b7827fcb348d4da740d9cbe5f0d293bbb45ceb6 · sha256:cc996e7d27342a55… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:3289e388a4d118b8545f2ebe2b7827fcb348d4da740d9cbe5f0d293bbb45ceb6 · sha256:cc996e7d27342a55… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/libp2p/rust-yamux/security/advisories/GHSA-4w32-2493-32g7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/libp2p/rust-yamux/security/advisories/GHSA-4w32-2493-32g7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3289e388a4d118b8545f2ebe2b7827fcb348d4da740d9cbe5f0d293bbb45ceb6 · sha256:cc996e7d27342a55… · /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.