Updated: 2025-08-20 00:29:45.802218
Description:
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 5.0 |
| CVSS Version 3.x | HIGH | 7.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| Alpine Linux 3.22 | python | 3.9 | 7.5 | HIGH | Needs Triage | 2026-02-20 15:26:26 | ||
| Alpine Linux 3.22 | python | 3.7 | 7.5 | HIGH | Not Vulnerable | 2026-02-16 14:40:40 | ||
| Alpine Linux 3.22 | python | 3.8 | 7.5 | HIGH | Needs Triage | 2026-02-20 15:25:50 | ||
| Alpine Linux 3.22 | python | 3.6 | 7.5 | HIGH | Already Fixed | 2026-01-27 16:43:32 | ||
| Debian 10 | python | 3.6 | 7.5 | HIGH | Already Fixed | 2025-09-05 09:17:02 | ||
| Debian 10 | python | 2.7 | 7.5 | HIGH | Not Vulnerable | 2025-09-05 09:17:01 | ||
| Debian 11 | python | 2.7 | 7.5 | HIGH | Not Vulnerable | 2025-09-05 09:17:00 | ||
| Debian 11 | python | 3.6 | 7.5 | HIGH | Already Fixed | 2025-09-05 09:17:02 | ||
| Debian 12 | python | 3.9 | 7.5 | HIGH | Needs Triage | 2026-02-20 15:25:55 | ||
| Debian 12 | python | 3.7 | 7.5 | HIGH | Not Vulnerable | 2025-11-12 16:13:00 |