CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2022-31099
Medium (6.5) in pomsky-lang pomsky. EPSS 1.0% chance of exploitation in the next 30 days. Fixed in rulex 0.4.3.
rulex is a new, portable, regular expression language. When parsing untrusted rulex expressions, the stack may overflow, possibly enabling a Denial of Service attack. This happens when parsing an expression with several hundred levels of nesting, causing the process to abort immediately. This is a security concern for you, if your service parses untrusted rulex expressions (expressions provided by an untrusted user), and your service becomes unavailable when the process running rulex aborts due to a stack overflow. The crash is fixed in version **0.4.3**. Affected users are advised to update to this version. There are no known workarounds for this issue.
Severity
- EPSS
- 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
- CWE
- CWE-674
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pomsky-lang:pomsky
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-v78m-2q7v-fjqp | crates.io | rulex | <0.4.3 | 0.4.3 |
| RUSTSEC-2022-0030 | crates.io | rulex | >=0.0.0-0 <0.4.3 | 0.4.3 |
References
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp