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CVE-2022-31779
Improper HTTP/2 scheme and method validation
High7.5EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- apache
Description
Improper Input Validation vulnerability in HTTP/2 header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.
Timeline
ID reserved
By apache
- 3 months later
· 3 months later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Apache Software Foundation · Apache Traffic Server
- affected 8.0.0 to 9.1.2
References (4)
- https://lists.apache.org/thread/rc64lwbdgrkv674koc3zl1sljr9vwg21 (opens in a new tab)x_refsource_MISCx_transferred
- DSA-5206 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2022-9832c0c04b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2022-23043f5a0b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-31779)Record last updated .