Resource exhaustion in Rizin
CVE-2026-22780
Rizin is a UNIX-like reverse engineering framework and command-line toolset. Prior to 0.8.2, a heap overflow can be exploited when a malicious mach0 file, having bogus entries for the dyld chained segments, is parsed by rizin. This vulnerability is fixed in 0.8.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (7.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Rizin
- Rizinorg Rizin — versions < 0.8.2
Weakness classification (CWE)
References
- github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj (Patch, Vendor Advisory)
- github.com/rizinorg/rizin/issues/5768 (Issue Tracking)
- github.com/rizinorg/rizin/pull/5770 (Issue Tracking)
- github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989 (Patch)
- github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/b… (Patch)
- github.com/rizinorg/rizin/releases/tag/v0.8.2 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-22780?
- CVE-2026-22780 is a medium-severity vulnerability in Rizin, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.4/10. Published 2026-02-02.
- How severe is CVE-2026-22780?
- Medium severity. CVSS v3 base score is 4.4 out of 10.