CVE catalog
CVE-2023-45648
Tomcat vulnerabilities
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 5.88% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tomcat9 | sid | 9.0.122-1 | fixed |
| Debian | tomcat9 | forky | 9.0.122-1 | fixed |
| Debian | tomcat9 | trixie | 9.0.95-1 | fixed |
| Debian | tomcat9 | bookworm | 9.0.70-2 | fixed |
| Debian | tomcat10 | sid | 10.1.60-1 | fixed |
| Debian | tomcat10 | forky | 10.1.60-1 | fixed |
| Debian | tomcat10 | trixie | 10.1.55-1~deb13u1 | fixed |
| Debian | tomcat10 | trixie-security | 10.1.55-1~deb13u1 | fixed |
| Debian | tomcat10 | bookworm | 10.1.55-1~deb12u1 | fixed |
| Debian | tomcat10 | bookworm-security | 10.1.55-1~deb12u1 | fixed |
| Ubuntu | tomcat10 | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat9 | noble | 9.0.70-2ubuntu0.1+esm2 | fixed |
| Ubuntu | libtomcat10-embed-java | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | libtomcat10-java | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | libtomcat9-java | noble | 9.0.70-2ubuntu0.1+esm2 | fixed |
| Ubuntu | tomcat10-admin | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat10-common | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat10-docs | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat10-examples | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat10-user | noble | 10.1.16-1ubuntu0.1~esm2 | fixed |
| Ubuntu | tomcat6 | pro | 6.0.37-1 | vulnerable |
| Ubuntu | tomcat6 | pro | 6.0.39-1 | vulnerable |
| Ubuntu | tomcat6 | pro | 6.0.39-1ubuntu0.1 | vulnerable |
| Ubuntu | tomcat6 | pro | 6.0.39-1ubuntu0.1+esm1 | vulnerable |
| Ubuntu | tomcat6 | pro | 6.0.39-1ubuntu0.1+esm2 | vulnerable |
| Ubuntu | tomcat6 | pro | 6.0.39-1ubuntu0.1+esm3 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.64-1 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.1 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.3 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.4 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.4+esm1 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.4+esm2 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.4+esm3 | vulnerable |
| Ubuntu | tomcat7 | pro | 7.0.68-1ubuntu0.4+esm4 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.21-1ubuntu1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.29-1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.30-1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.30-1ubuntu1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.30-1ubuntu1.2 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.30-1ubuntu1.3 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.30-1ubuntu1.4 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.2 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3+esm1 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3+esm2 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3+esm3 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3+esm4 | vulnerable |
| Ubuntu | tomcat8 | pro | 8.5.39-1ubuntu1~18.04.3+esm5 | fixed |
| Ubuntu | tomcat9 | pro | 9.0.70-1ubuntu1 | vulnerable |
| Ubuntu | tomcat9 | pro | 9.0.70-2 | vulnerable |
| Ubuntu | tomcat9 | pro | 9.0.70-2ubuntu0.1 | vulnerable |
| Ubuntu | tomcat9 | pro | 9.0.70-2ubuntu0.1+esm1 | vulnerable |
| Ubuntu | tomcat9 | pro | 9.0.70-2ubuntu0.1+esm2 | fixed |
| Ubuntu | tomcat9 | 20.04 | 9.0.24-1 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.27-1 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.1 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.2 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.3 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.4 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.5 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.6 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.7 | vulnerable |
| Ubuntu | tomcat9 | 20.04 | 9.0.31-1ubuntu0.8 | fixed |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu1.1 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu2 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tomcat9 | source | sid | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | forky | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | trixie | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | bookworm | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat10 | source | sid | 10.1.14-1 | not yet assigned | Not reported | Not reported |
| Debian | tomcat10 | source | forky | 10.1.14-1 | not yet assigned | Not reported | Not reported |
| Debian | tomcat10 | source | trixie | 10.1.14-1 | not yet assigned | Not reported | Not reported |
| Debian | tomcat10 | source | bookworm | 10.1.6-1+deb12u1 | not yet assigned | Not reported | Not reported |
| Ubuntu | tomcat10 | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat9 | deb | noble | 9.0.70-2ubuntu0.1+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | libtomcat10-embed-java | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | libtomcat10-java | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | libtomcat9-java | deb | noble | 9.0.70-2ubuntu0.1+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat10-admin | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat10-common | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat10-docs | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat10-examples | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat10-user | deb | noble | 10.1.16-1ubuntu0.1~esm2 | Not reported | Not reported | Not reported |
| Ubuntu | tomcat8 | deb | pro | 8.5.39-1ubuntu1~18.04.3+esm5 | Not reported | UBUNTU-CVE-2023-45648 | Not reported |
| Ubuntu | tomcat9 | deb | pro | 9.0.70-2ubuntu0.1+esm2 | Not reported | UBUNTU-CVE-2023-45648 | Not reported |
| Ubuntu | tomcat9 | deb | 20.04 | 9.0.31-1ubuntu0.8 | Not reported | UBUNTU-CVE-2023-45648 | Not reported |
| Ubuntu | tomcat9 | deb | 25.10 | 9.0.70-2ubuntu3 | Not reported | UBUNTU-CVE-2023-45648 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-784301.json]
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_4337-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-45648]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-45648]
- [https://security-tracker.debian.org/tracker/CVE-2023-45648]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-45648.json]
- [https://ubuntu.com/security/notices/USN-7562-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2628.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]