CVE-2026-58157

highpriority · track · 0EPSS 0.005 · 42 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (42nd) EPSS

CVSS 8.7 · high

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections. 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.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 2.5–8.7

v3.18.7highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondary · security@apache.orgexploitability 2.2 · impact 5.8

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:Nsecondary · ENISA EU

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security@apache.org

v4.02.5lowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200US

affected products (10)

Products and version ranges known to be affected.

Apache Traffic Server <10.1.4all versionscert_bundDE
Apache Traffic Server <9.2.15all versionscert_bundDE
Apache Traffic Server< 10.1.4cert_bundDE
Apache Traffic Server< 9.2.15cert_bundDE
Apache Software Foundation Apache Traffic Server≤ 10.0.0 ≤10.1.3enisa_euvdEU
Apache Software Foundation Apache Traffic Server≤ 9.0.0 ≤9.2.14enisa_euvdEU
Apache Software Foundation Apache Traffic Server≤ 8.0.0 ≤8.1.9enisa_euvdEU
apache traffic server10.0.0 → 10.1.4nvdUScpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
apache traffic server8.0.0 → 8.1.9nvdUScpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
apache traffic server9.0.0 → 9.2.15nvdUScpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2561Apache Traffic Server: Mehrere SchwachstellenDeutsch2026-07-28csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache Traffic Server ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren, einen Denial-of-Service auszulösen und potentiell eine Codeausführung zu erreichen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-07-29modified 2026-08-03

references (3)

External citations — patches, advisories, analysis.

scry

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