Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.3 | Medium | 3.1 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0036, the 30th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:18 UTC First seen by agentprime
- 31 Oct 2026, 15:18 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-q879-9g95-56mx
- OSV: GHSA-q879-9g95-56mx
- github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q879-9g95-56mx
- nvd.nist.gov/vuln/detail/CVE-2021-39219
- github.com/bytecodealliance/wasmtime/commit/b39f087414f27ae40c44449ed5d1154e03449bff
- crates.io/crates/wasmtime
- github.com/bytecodealliance/wasmtime
- github.com/bytecodealliance/wasmtime-py/compare/0.29.0...0.30.0
- github.com/pypa/advisory-database/tree/main/vulns/wasmtime/PYSEC-2021-322.yaml
- lists.fedoraproject.org/archives/list/[email protected]/message/WAVBRYDDUIY2ZR3K3FO4BVYJKIMJ5TP7
- lists.fedoraproject.org/archives/list/[email protected]/message/Z2Z33FTXFQ6EOINVEQIP4DFBG53G5XIY
- rustsec.org/advisories/RUSTSEC-2021-0110.html