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Fencer Vulns
medium 4.3

CVE-2024-56202 json

Apache Traffic Server: Expect header field can unreasonably retain resource

published 2025-03-06 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-6104

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

Expected Behavior Violation vulnerability in Apache Traffic Server.

This issue affects Apache Traffic Server: from 9.0.0 through 9.2.8, from 10.0.0 through 10.0.3.

Users are recommended to upgrade to versions 9.2.9 or 10.0.4 or newer, which fixes the issue.

Patch / fix

  • apache traffic_server 9.2.9, 10.0.4
  • trafficserver Debian 12 9.2.5+ds-0+deb12u2

debian advisories DEBIAN-CVE-2024-56202

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-56202 updated cvss 5.3

trafficserver: Apache Traffic Server: Expect header field can unreasonably retain resource

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Apache Software Foundation Apache Traffic Server

Classification

Weakness
  • CWE-440 Expected Behavior Violation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.