{"id":"CVE-2026-115379","aliases":["RUSTSEC-2026-0326","GHSA-hw8m-q44c-ggrf"],"title":"Rooting for GC values live across `try_call` may be missing, causing GC heap corruption","summary":"Rooting for GC values live across `try_call` may be missing, causing GC heap corruption","severity":"medium","cvss":5.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","vendor":"wasmtime","product":"wasmtime","ecosystem":"rust","affected":["wasmtime >= 49.0.0, < 49.0.2"],"patched":["wasmtime 49.0.2"],"published":"2026-10-02","updated":"2026-10-24","sourceUpdated":"2026-10-24T06:25:41Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0326","references":[{"url":"https://crates.io/crates/wasmtime"},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0326.html"},{"url":"https://github.com/bytecodealliance/wasmtime/pull/14478"},{"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hw8m-q44c-ggrf","label":"GitHub Security Advisory (GHSA-hw8m-q44c-ggrf)"},{"url":"https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.4-and-49.0.0-before-49.0.2-gc-heap-corruption-via-try-call","label":"VulnCheck Advisory: Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 GC Heap Corruption via try_call"}],"tags":["osv","rust","cve.org"],"epss":0.00278,"epssPercentile":0.20072,"cwe":["CWE-416"],"ingestedAt":"2026-10-22T22:00:50.403Z","slug":"CVE-2026-115379","body":"## Overview\n\nThis is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hw8m-q44c-ggrf\nFor more information see the GitHub-hosted security advisory.\n\n## Affected packages\n\n- `wasmtime >= 49.0.0, < 49.0.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `wasmtime 49.0.2`","depth":"sunlit","depthScore":31,"depthScoreParts":{"impact":31.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}