CVE-2022-25763

Improper input validation on HTTP/2 headers

7.5 HighFix available

Improper Input Validation vulnerability in HTTP/2 request validation of Apache Traffic Server allows an attacker to create smuggle or cache poison attacks. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

2.09%Up 1.2 points since Aug 11, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2022-25763
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-444
Updated: 2026-11-02

CVE List 6.8

Improper input validation on HTTP/2 headers

Record: CVE-2022-25763
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-444
Updated: 2026-11-02

EUVDEUVD-2022-30414 6.8

Record: EUVD-2022-30414
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-mp6g-w483-p43g 7.5

Improper Input Validation vulnerability in HTTP/2 request validation of Apache Traffic Server...

Record: GHSA-mp6g-w483-p43g
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-20, CWE-444
Updated: 2026-11-02

OSV 6.8

Improper input validation on HTTP/2 headers

Record: CVE-2022-25763
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-444
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-25763 7.5

Record: DEBIAN-CVE-2022-25763
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-25763 7.5

Record: UBUNTU-CVE-2022-25763
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`trafficserver` Debian:12	before 9.1.3+ds-1	9.1.3+ds-1
`trafficserver` Debian:10 From an advisory covering 4 CVEs	before 8.0.2+ds-1+deb10u7, plus listed versions 8.0.2+ds-18.0.2+ds-1+deb10u18.0.2+ds-1+deb10u28.0.2+ds-1+deb10u38.0.2+ds-1+deb10u48.0.2+ds-1+deb10u58.0.2+ds-1+deb10u6	8.0.2+ds-1+deb10u7
`trafficserver` Debian:11 From an advisory covering 6 CVEs	before 8.1.5+ds-1~deb11u1, plus listed versions 8.1.1+ds-1.18.1.1+ds-1.1+deb11u1	8.1.5+ds-1~deb11u1
`trafficserver` Ubuntu:16.04:LTS	All versions, plus listed versions 5.3.0-2ubuntu15.3.0-2ubuntu2	None known
`trafficserver` Ubuntu:18.04:LTS	All versions, plus listed versions 7.0.0-57.1.2+ds-27.1.2+ds-2build17.1.2+ds-3	None known
`trafficserver` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 8.0.5+ds-18.0.5+ds-28.0.5+ds-2build18.0.5+ds-2ubuntu18.0.5+ds-38.0.5+ds-3ubuntu0.1~esm1	None known
`trafficserver` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 8.1.1+ds-1.19.1.1+ds-2build19.1.1+ds-2ubuntu0.1~esm19.1.1+ds-2ubuntu0.19.1.1+ds-2ubuntu0.1+esm1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-25763 is a high vulnerability (CVSS 7.5) in Apache Traffic Server, published August 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.09%, the 81st percentile. Fixed in trafficserver 9.1.3+ds-1.

References

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