Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Versions of the ruzstd crate before 0.9.1 can be made to allocate several gigabytes of memory from a crafted .zst input under 128 KB, causing an out-of-memory crash. An attacker only needs to supply such a file to a program that decodes untrusted input, and the result is a denial of service, with no memory corruption or code execution. Upgrade to ruzstd 0.9.1 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | OSV |
- CISA KEV Not listed.
- EPSS No score.
Timeline
- 31 Oct 2026, 14:24 UTC First seen by agentprime
- 31 Oct 2026, 14:24 UTC Confirmed by OSV