10

CVE-2026-58162: apache software foundation apache traffic server Improper Certificate Validation

CVSS: 10.0v3.1CriticalModified
AliasesUBUNTU-CVE-2026-58162DEBIAN-CVE-2026-58162
Published 29-07-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-58162 is a critical (CVSS 10.0) Improper Certificate Validation vulnerability in apache software foundation apache traffic server. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-07-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

The Apache Traffic Server certifier plugin generates certificates based on attacker-controlled client SNI. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, 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.

CVSS metrics

7 scores · 4 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

+0.13 pp

From 0.22% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • traffic_server≥ 8.0.0, ≤ 8.1.9 | ≥ 9.0.0, < 9.2.15 | ≥ 10.0.0, < 10.1.4
Apache software foundation1 product
Debian1 product
  • trafficserverAll versions (No fix recorded)
Ubuntu1 product
  • trafficserverAll versions (No fix recorded)

4 vendors · 4 products

References

4 links