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CVE-2012-5885 — tomcat

CVE-2012-5885 is a CWE-264 vulnerability in org.apache.tomcat:tomcat. A fix is available for org.apache.tomcat:tomcat — see the affected versions and patch details below.

Improper Access Control in Apache Tomcat

Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Nov 1, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2012-5885.

EPSS Exploitation Probability

via FIRST.org ↗
9.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs95th percentile — riskier than 95% of all scored CVEsHighest risk
0.00%3.70%7.39%11.1%2.3%9.0%May 26Aug 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

3 pkgs affected
☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat☕org.apache.tomcat:tomcat

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a different vulnerability than CVE-2011-1184.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.tomcat:tomcat≥ 5.5.0&&< 5.5.365.5.36org.apache.tomcat:tomcat:5.5.36
☕Mavenorg.apache.tomcat:tomcat≥ 6.0.0&&< 6.0.366.0.36org.apache.tomcat:tomcat:6.0.36
☕Mavenorg.apache.tomcat:tomcat≥ 7.0.0&&< 7.0.307.0.30org.apache.tomcat:tomcat:7.0.30

Affected Products

1 product · 107 configurations
Application
tomcatapache
94 versions
5.5.05.5.15.5.25.5.35.5.45.5.55.5.65.5.75.5.85.5.95.5.105.5.11

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat:tomcat, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.tomcat:tomcat to 5.5.36 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-5885 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate
ProductFixed inAdvisory
JBEWP 5 for RHEL 5jbossweb-0:2.1.13-3_patch_02.ep5.el5RHSA-2013:0631
JBoss Data Grid 6.1see advisoryRHSA-2013:0665
JBoss Enterprise BRMS Platform 5.3see advisoryRHSA-2013:1006
Red Hat Enterprise Linux 5tomcat5-0:5.5.23-0jpp.38.el5_9RHSA-2013:0640
Red Hat Enterprise Linux 6tomcat6-0:6.0.24-52.el6_4RHSA-2013:0623
Red Hat JBoss Enterprise Application Platform 5.2see advisoryRHSA-2013:0632
Red Hat JBoss Enterprise Application Platform 5 for RHEL 5jbossweb-0:2.1.13-3_patch_02.ep5.el5RHSA-2013:0629
Red Hat JBoss Enterprise Application Platform 6.0see advisoryRHSA-2013:0648

Frequently Asked Questions

The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a different vulnerability than CVE-2011-1184.
O3 Security · Impact-Aware SCA

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CVE-2012-5885: tomcat — Fixed in 5.5.36