CVE-2023-45648
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Apache Tomcat: Trailer header parsing too lenient
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Apache Tomcat
- Vendor
- Apache Software Foundation
- Product
- Apache Tomcat
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 11.0.0-M1 | affected | semver | Unavailable | 11.0.0-M11 | None listed |
| 10.1.0-M1 | affected | semver | Unavailable | 10.1.13 | None listed |
| 9.0.0-M1 | affected | semver | Unavailable | 9.0.81 | None listed |
| 8.5.0 | affected | semver | Unavailable | 8.5.93 | None listed |
| 3 | unknown | semver | 8.5.0 | Unavailable | None listed |
| 10.0.0-M1 | unknown | semver | Unavailable | 10.0.27 | None listed |