🛡️ RUSTSEC-2026-0233 — rkyv

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Crafted archives can cause a use-after-free during deserialization

Insufficient archive range validation could allow a crafted archive to reach

ArchivedString::deserialize with an invalid pointer. A reported reproducer

used rkyv::from_bytes to deserialize a struct containing strings, a vector,

a box, and an optional hash map. AddressSanitizer detected a heap use-after-free

during string deserialization.

The flaw could be triggered through the safe checked deserialization API when

processing malicious archive bytes. Version 0.8.17 rejects the malformed

archive during validation. Users who process untrusted archives should upgrade

to 0.8.17 or later.

Affected software

RUSTSEC-2026-0233 is recorded against 1 package.

  • rkyv

Timeline and source

Published on 11 May 2026 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

crates.io (Package)
rustsec.org (Advisory)
github.com (Report)
github.com (Web)
github.com (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-11
Updated 2026-08-12
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
rkyv

Similar Threats

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