Bug 2559256 (CVE-2026-115379) - CVE-2026-115379 wasmtime: Wasmtime: Denial of Service via missing garbage collection rooting
Summary: CVE-2026-115379 wasmtime: Wasmtime: Denial of Service via missing garbage col...
Keywords:
Status: NEW
Alias: CVE-2026-115379
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-22 19:42 UTC by OSIDB Bzimport
Modified: 2026-10-23 15:38 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-22 19:42:32 UTC 
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a missing GC rooting vulnerability that leaves references live across try_call unrooted when compiling Wasm modules. Attackers can supply Wasm modules whose callee triggers garbage collection, leaving stale or dangling references that cause GC heap corruption or incorrect execution.
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