CVE-2025-58136: A bug in POST request handling causes a crash under a certain condition. This issue affects Apache Traffic Se

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HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2025-58136 is a high-severity flaw (CVSS 7.5) affecting traffic server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A bug in POST request handling causes a crash under a certain condition. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.1, from 9.0.0 through 9.2.12. Users are recommended to upgrade to version 10.1.2 or 9.2.13, which fix the issue. A workaround for older versions is to set proxy.config.http.request_buffer_enabled to 0 (the default value is 0).

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-670
Published	2026-04-02
Last modified	2026-07-24

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-02 17:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

apache traffic server UPGRADE

Affected: >= 9.0.0 and < 9.2.13 · >= 10.0.0 and < 10.1.2

Fixed in: 9.2.13, 10.1.2

Safe to downgrade to: a release before 9.0.0

1. Check installed version

apt-cache policy traffic-server || rpm -q traffic-server || traffic-server --version

2. UPGRADE to 9.2.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade traffic-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade traffic-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 9.0.0 (Debian / Ubuntu)

apt-cache madison traffic-server sudo apt install traffic-server=<VERSION_BEFORE_9.0.0> sudo apt-mark hold traffic-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list traffic-server sudo dnf downgrade traffic-server-<VERSION_BEFORE_9.0.0> sudo dnf versionlock add traffic-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-58136?

traffic server: upgrade to 9.2.13, 10.1.2. Exact commands for each OS are on this page.

Is CVE-2025-58136 being exploited?

CVE-2025-58136 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-58136 affect?

CVE-2025-58136 affects traffic server. Severity is high (CVSS 7.5). A bug in POST request handling causes a crash under a certain condition. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.1, from 9.0.0 through 9.2.12. Users are recommended to upgrade to version 10.1.2 or 9.2.13, which

How urgent is CVE-2025-58136?

Priority 49/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

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References

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