CVE-2025-61581: apache software foundation apache traffic control
Vulnerability summary
CVE-2025-61581 is a high (CVSS 7.5) vulnerability in apache software foundation apache traffic control. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 16-10-2025PublishedVulnerability first disclosed.
- 04-11-2025Last modifiedVulnerability information updated.
Description
** UNSUPPORTED WHEN ASSIGNED ** Inefficient Regular Expression Complexity vulnerability in Apache Traffic Control. This issue affects Apache Traffic Control: all versions. People with access to the management interface of the Traffic Router component could specify malicious patterns and cause unavailability. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
CVSS metrics
3 scores · 3 sources · 2 versions- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
0.00 pp
From 0.74% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apache1 product
- traffic_control≤ 8.0.2
Apache software foundation1 product
- apache traffic controlAll versions (No fix recorded)
Github.com/apache1 product
- trafficcontrolAll versions (No fix recorded)
Github.com/apache/trafficcontrol1 product
- v8≤ 8.0.2 | All versions (No fix recorded)
4 vendors · 4 products