CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2023-47163
High (7.5) in remarshal project remarshal. EPSS 1.0% chance of exploitation in the next 30 days. Fixed in remarshal 0.17.1.
Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.
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
- remarshal_project:remarshal
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gw7g-qr8w-3448 | PyPI | remarshal | <0.17.1 | 0.17.1 |
| PYSEC-2023-236 | PyPI | remarshal | <0.17.1 | 0.17.1 |
References
- https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
- https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1
- https://jvn.jp/en/jp/JVN86156389/
- https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
- https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1