CVE-2026-108104 Xerial snappy-java 1.1.7.4 before 1.1.10.10 Double Release of Pooled Buffers in SnappyFramedInputStream
Attackers can trigger a double release of pooled buffers in snappy-java, leading to data exposure or corruption across streams.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-108104?
CVE-2026-108104 is a medium-severity use after free vulnerability in xerial snappy-java, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Xerial snappy-java from 1.1.7.4 before 1.1.10.10 contains a double release vulnerability in SnappyFramedInputStream that returns pooled buffers twice when replacement allocation fails. Attackers can supply framed data with a large declared chunk length to trigger OutOfMemoryError, causing shared backing arrays that expose or overwrite other streams' decompressed data.
Weakness: CWE-415
Which versions are affected by CVE-2026-108104?
How do I fix CVE-2026-108104?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-108104 being exploited?
There is no known exploitation of CVE-2026-108104 in the wild and no public exploit code.
Sources
Also known as CLEANSTART-2026-FN33770, DEBIAN-CVE-2026-108104, ECHO-9602-f49c-093f, GHSA-2xrm-qggp-hr4m, GHSA-c73m-r934-8qvg, UBUNTU-CVE-2026-108104.