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2 vulnerabilities found for stanza by stanfordnlp
CVE-2026-54499 (GCVE-0-2026-54499)
Vulnerability from nvd – Published: 2026-07-08 22:23 – Updated: 2026-07-09 13:13
VLAI
EPSS
VEX
Title
Stanza: Remote Code Execution via Unsafe Pickle Deserialization in Model Loaders
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/stanfordnlp/stanza/security/ad… | x_refsource_CONFIRM |
| https://github.com/stanfordnlp/stanza/pull/1587 | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/commit/b745… | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| stanfordnlp | stanza |
Affected:
< 1.12.2
|
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CVE-2026-54499 (GCVE-0-2026-54499)
Vulnerability from cvelistv5 – Published: 2026-07-08 22:23 – Updated: 2026-07-09 13:13
VLAI
EPSS
VEX
Title
Stanza: Remote Code Execution via Unsafe Pickle Deserialization in Model Loaders
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/stanfordnlp/stanza/security/ad… | x_refsource_CONFIRM |
| https://github.com/stanfordnlp/stanza/pull/1587 | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/commit/b745… | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| stanfordnlp | stanza |
Affected:
< 1.12.2
|
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