CVE-2025-6069
HTMLParser quadratic complexity when processing malformed inputs
4.3
MEDIUM
CVSS 3.1
EPSS 0.86%
Description
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
How to fix CVE-2025-6069
To remediate CVE-2025-6069, upgrade the affected package to a fixed version below.
- Bitnami/libpython—upgrade to 3.9.24 or later
- —upgrade to 3.9.24 or later
- —upgrade to 3.9.24 or later
- —no fix listed
- —upgrade to 7.3.5+dfsg-2+deb11u5 or later
- —no fix listed
- —upgrade to 3.11.2-6+deb12u7 or later
- —upgrade to 3.13.5-2+deb13u1 or later
- —upgrade to 3.9.2-1+deb11u4 or later
Is CVE-2025-6069 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (9)
- from 0, < 3.9.24, >= 3.10.0, < 3.10.19, >= 3.11.0, < 3.11.14, >= 3.12.0, < 3.12.12, >= 3.13.0, < 3.13.6
- from 0, < 3.9.24, >= 3.10.0, < 3.10.19, >= 3.11.0, < 3.11.14, >= 3.12.0, < 3.12.12, >= 3.13.0, < 3.13.6
- from 0, < 3.9.24, >= 3.10.0, < 3.10.19, >= 3.11.0, < 3.11.14, >= 3.12.0, < 3.12.12, >= 3.13.0, < 3.13.6
- from 0
- from 0, < 7.3.5+dfsg-2+deb11u5
- from 0
- from 0, < 3.11.2-6+deb12u7
- from 0, < 3.13.5-2+deb13u1
- from 0, < 3.9.2-1+deb11u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |