CVEvulnerability
CVE-2026-54499
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502, CWE-676
Description
Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.12.2, Stanza model loaders such as stanza.models.common.pretrain.Pretrain.load() attempt torch.load(..., weights_only=True) but fall back to torch.load(..., weights_only=False) on attacker-controllable pickle.UnpicklingError, allowing a malicious .pt pretrain or model file to execute arbitrary pickle code when a Stanza NLP pipeline loads it. This issue is fixed in version 1.12.2.
Affected configurations
• stanford stanza (< 1.12.2)
Related
References
- https://github.com/stanfordnlp/stanza/commit/b745008c68c9e50ccb5acd537cb6f2453f8b7ad4 Patch
- https://github.com/stanfordnlp/stanza/pull/1587 Issue Tracking, Patch
- https://github.com/stanfordnlp/stanza/releases/tag/v1.12.2 Release Notes
- https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c Exploit, Vendor Advisory
- https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c Exploit, Vendor Advisory