OSV-2026-1345 Heap-buffer-overflow in load_u64
Not scored
Published
Check this codebase for OSV-2026-1345 and fix it if it is affected.
What it is: OSV-2026-1345 is a vulnerability in tarantool, published on 1 Oct 2026.
Exploitation: There is no known exploitation of OSV-2026-1345 in the wild and no public exploit code.
Affected packages and fixed versions:
- tarantool (OSS-Fuzz): affected all versions; no fix listed
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/OSV-2026-1345/ (Markdown: https://insights.sbomify.com/OSV-2026-1345/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is OSV-2026-1345?
OSV-2026-1345 is a vulnerability in tarantool, published on 1 Oct 2026.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=567611282
Crash type: Heap-buffer-overflow WRITE 8
Crash state:
load_u64
datetime_unpack
luamp_decode_with_ctx
Which versions are affected by OSV-2026-1345?
1 open source package ship an affected version, including tarantool.
| Package | Affected | Fixed in |
|---|---|---|
tarantool OSS-Fuzz | All versions | None |
How do I fix OSV-2026-1345?
No fix has been published for OSV-2026-1345 yet. Limit exposure of the affected software until one is available.
Is OSV-2026-1345 being exploited?
There is no known exploitation of OSV-2026-1345 in the wild and no public exploit code.