Bug 2523372 (CVE-2026-79657)
| Summary: | CVE-2026-79657 nltk: NLTK before 3.10.3 Remote Code Execution via Unsafe Pickle Deserialization | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | unspecified | CC: | anpicker, bparees, dschmidt, ebourniv, hasun, ikhan, jfula, jlanda, jowilson, kshier, nyancey, ometelka, ptisnovs, rbobbitt, sbunciak, simaishi, stcannon, syedriko, xdharmai, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in NLTK. This vulnerability allows a remote attacker to achieve arbitrary code execution by supplying a specially crafted model or tokenizer artifact for the application to process. The issue occurs because the deserialization allowlist mechanism permits entire software namespaces rather than restricting execution to specific safe functions, allowing dangerous internal commands to run during data loading.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2543417, 2543418 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-08-25 11:43:08 UTC
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