PatchTheCVECVE-2025-55752: Relative Path Traversal vulnerability in Apache Tomcat. The fix for bug 60013 introduced a regression where t
61
This week
HIGH 7.5WATCHLISTUPGRADE
CVE-2025-55752 is a high-severity flaw (CVSS 7.5) affecting tomcat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Relative Path Traversal vulnerability in Apache Tomcat. The fix for bug 60013 introduced a regression where the rewritten URL was normalized before it was decoded. This introduced the possibility that, for rewrite rules that rewrite query parameters to the URL, an attacker could manipulate the request URI to bypass security constraints including the protection for /WEB-INF/ and /META-INF/. If PUT requests were also enable
Why this priority
- High severity
- EPSS top 1%: very likely to be exploited
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 64.4% (top 1%) |
| CISA exploited list | No |
| Weakness | CWE-23 |
| Published | 2025-10-27 |
| Last modified | 2026-10-08 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
apache tomcat UPGRADE
Affected: >= 8.5.6 and <= 8.5.100 · >= 9.0.1 and < 9.0.109 · >= 10.0.0 and < 10.0.27 · >= 10.1.0 and < 10.1.45 · >= 11.0.0 and < 11.0.11 · 9.0.0 · 9.0.0 milestone11 · 9.0.0 milestone12
Fixed in: 9.0.109, 10.0.27, 10.1.45, 11.0.11
Safe to downgrade to: a release before 8.5.6
1. Check installed version
apt-cache policy tomcat || rpm -q tomcat || tomcat --version
2. UPGRADE to 9.0.109 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade tomcat
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade tomcat
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 8.5.6 (Debian / Ubuntu)
apt-cache madison tomcat
sudo apt install tomcat=<VERSION_BEFORE_8.5.6>
sudo apt-mark hold tomcat
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list tomcat
sudo dnf downgrade tomcat-<VERSION_BEFORE_8.5.6>
sudo dnf versionlock add tomcat
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Exact fixes by distribution
Maven · org.apache.tomcat:tomcat · FIXED · 11.0.11 · vulnerable: >= 11.0.0-M1, < 11.0.11 · source
Set org.apache.tomcat:tomcat to 11.0.11 or later in pom.xml or build.gradle, then rebuild and redeploy.
Maven · org.apache.tomcat:tomcat-catalina · FIXED · 11.0.11 · vulnerable: >= 11.0.0-M1, < 11.0.11 · source
Set org.apache.tomcat:tomcat-catalina to 11.0.11 or later in pom.xml or build.gradle, then rebuild and redeploy.
Maven · org.apache.tomcat.embed:tomcat-embed-core · FIXED · 11.0.11 · vulnerable: >= 11.0.0-M1, < 11.0.11 · source
Set org.apache.tomcat.embed:tomcat-embed-core to 11.0.11 or later in pom.xml or build.gradle, then rebuild and redeploy.
Fedora ELN · openldap · FIXED · 2.6.16-1.eln159 · FEDORA-2026-4b30c86326 · source
sudo dnf upgrade --advisory=FEDORA-2026-4b30c86326
Fedora 46 · php-pecl-yac · FIXED · 3.0.1-2.fc46 · FEDORA-2026-5f43289aa2 · source
sudo dnf upgrade --advisory=FEDORA-2026-5f43289aa2
Ubuntu 24.04 · tomcat9 · NOT AFFECTED
Ubuntu 25.04 · tomcat9 · NOT AFFECTED
Ubuntu 25.10 · tomcat9 · NOT AFFECTED
Ubuntu 20.04 · tomcat9 · NO FIX YET
Ubuntu 22.04 · tomcat9 · NO FIX YET
Debian 12 · tomcat10 · FIXED · 10.1.52-1~deb12u1
sudo apt update && sudo apt install --only-upgrade tomcat10
dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat10)" ge "10.1.52-1~deb12u1" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · tomcat10 · FIXED · 10.1.52-1~deb13u1
sudo apt update && sudo apt install --only-upgrade tomcat10
dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat10)" ge "10.1.52-1~deb13u1" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · tomcat11 · FIXED · 11.0.15-1~deb13u1
sudo apt update && sudo apt install --only-upgrade tomcat11
dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat11)" ge "11.0.15-1~deb13u1" && echo PATCHED || echo STILL-VULNERABLE
Debian 12 · tomcat9 · FIXED · 9.0.70-2
sudo apt update && sudo apt install --only-upgrade tomcat9
dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat9)" ge "9.0.70-2" && echo PATCHED || echo STILL-VULNERABLE
RHEL 10 · tomcat · FIXED · tomcat-10.1.36-3.el10_1.1
sudo dnf upgrade --advisory=RHSA-2025:23050
rpm -q tomcat
RHEL 10 · tomcat9 · FIXED · tomcat9-9.0.87-8.el10_1.1
sudo dnf upgrade --advisory=RHSA-2025:23052
rpm -q tomcat9
RHEL 10.0 Extended Update Support · tomcat · FIXED · tomcat-10.1.36-1.el10_0.3
sudo dnf upgrade --advisory=RHSA-2025:23051
rpm -q tomcat
RHEL 10.0 Extended Update Support · tomcat9 · FIXED · tomcat9-9.0.87-5.el10_0.4
sudo dnf upgrade --advisory=RHSA-2025:23053
rpm -q tomcat9
RHEL 8 · tomcat · FIXED · tomcat-9.0.87-1.el8_10.7
sudo dnf upgrade --advisory=RHSA-2025:23048
rpm -q tomcat
sudo dnf update --advisory=ALAS2023-2025-1281
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: TAM-K592/CVE-2025-55752 (13 stars)
- GitHub PoC: masahiro331/CVE-2025-55752 (13 stars)
- GitHub PoC: AuroraSec-Pivot/CVE-2025-55752 (2 stars)
- Write-up: www.vicarius.io/vsociety/posts/cve-2025-55752-detect-apache-tomcat-vulnerability
- Write-up: www.vicarius.io/vsociety/posts/cve-2025-55752-mitigate-apache-tomcat-vulnerability
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-55752?
tomcat: upgrade to 9.0.109, 10.0.27, 10.1.45, 11.0.11. Exact commands for each OS are on this page.
Is CVE-2025-55752 being exploited?
CVE-2025-55752 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-55752 affect?
CVE-2025-55752 affects tomcat. Severity is high (CVSS 7.5). Relative Path Traversal vulnerability in Apache Tomcat. The fix for bug 60013 introduced a regression where the rewritten URL was normalized before it was decoded. This introduced the possibility that, for rewrite rules that re
How urgent is CVE-2025-55752?
Priority 61/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference; On your watchlist
Software pages
Related CVEs
- CVE-2026-34486 HIGH 7.5 EXPLOITED DOWNGRADE DOWNGRADE Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
- CVE-2026-29146 HIGH 7.5 UPGRADE Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue aff
- CVE-2026-25854 MEDIUM 6.1 UPGRADE Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBala
- CVE-2026-29145 CRITICAL 9.1 UPGRADE UPGRADE CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerabili
- CVE-2026-24880 HIGH 7.5 UPGRADE Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomca