CVE-2026-58154
Medium
Elevated severity or exploit probability.
CVSS base
8.9
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
EPSS — probability of exploitation (30 days)
0.4%
33.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-787
Published 2026-07-29 · modified 2026-08-03
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | L | Low |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-07-29 — Published (NVD)
- 2026-08-03 — Last modified (NVD)
Description
Apache Traffic Server can write out of bounds or overflow integers while parsing MIME and HTTP headers. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.