CVE-2022-31778 json
Transfer-Encoding not treated as hop-by-hop
published 2022-08-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53171
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
Improper Input Validation vulnerability in handling the Transfer-Encoding header of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 8.0.0 to 9.0.2.
Patch / fix
- trafficserver Debian 12 9.1.3+ds-1
debian advisories DEBIAN-CVE-2022-31778
Exploit prediction
2.14% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
- Apache Software Foundation Apache Traffic Server
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
debian.org
/security/2022/dsa-5206
vendor-advisory, third-party-advisory
-
lists.apache.org
/thread/rc64lwbdgrkv674koc3zl1sljr9vwg21
mailing-list, vendor-advisory
-
lists.debian.org
/debian-lts-announce/2023/04/msg00007.html
mailing-list
Sources
- CVE List CVE-2022-31778
- NVD CVE-2022-31778
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.