CVE-2026-80205
CVE-2026-80205: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-80205] Denial of Service via unvalidated regular expressions
CVE-2026-80205Source published Source updated
NLTK versions before 3.10.0 contain a regular expression denial of service vulnerability in Text.findall() and TokenSearcher.findall() methods that accept user-supplied regular expressions without validation or timeout. Attackers can supply crafted regex patterns that cause catastrophic backtracking, resulting in indefinite CPU saturation and denial of service to all users of the Python process. A flaw was found in NLTK. These methods accept user-supplied regular expressions without validation, allowing an attacker to provide crafted patterns that cause catastrophic backtracking. The functions process unvalidated, user-supplied regular expressions without evaluation timeouts. An unauthenticated remote attacker can exploit this by supplying a specially crafted regex pattern designed to…
- Affected products in this advisory
- Red Hat OpenShift AI 3.3
- Red Hat OpenShift AI 3.5
- Exploit Intelligence
- Lightspeed Core
3 more entries in the full advisory.
- Source-reported affected versions
- < 3.10.0
- Source-reported fixed versions
- rhoai/odh-llama-stack-core-rhel9:1789121286
- rhoai/odh-ta-lmes-job-rhel9:1788935863
- RHSA-2026:73987
- RHSA-2026:69539
- Mitigation guidance
- Sanitize all untrusted input passed to `Text.findall()` or `TokenSearcher.findall()` to prevent execution of arbitrary or unvalidated regular expressions, or enforce execution timeouts via worker process isolation to bound CPU consumption.
Android app · Google Play
Monitor future Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.