How severe is CVE-2010-4312?

No CVSS score has been assigned to CVE-2010-4312 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2010-4312?

CVE-2010-4312 affects the following packages: org.apache.tomcat:tomcat (Maven). Ecosystems affected: Maven.

How do I fix CVE-2010-4312?

Update org.apache.tomcat:tomcat to 6.0.35 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2010-4312 is resolved across your whole dependency graph.

How do I detect CVE-2010-4312 in my Maven dependencies?

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.

How do I mitigate CVE-2010-4312 if there is no patch (or I can't update yet)?

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.

Is CVE-2010-4312 actively exploited in the wild?

No public exploit code has been indexed for CVE-2010-4312 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2010-4312?

CVE-2010-4312 has an EPSS (Exploit Prediction Scoring System) score of 2.1%, placing it in the 82th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2010-4312?

CVE-2010-4312 is classified as CWE-16 (CWE-16). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2010-4312 published, and has it been updated?

CVE-2010-4312 was published on May 14, 2022 and was last updated on February 8, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2010-4312 — tomcat

CVE-2010-4312 is a CWE-16 vulnerability in org.apache.tomcat:tomcat. A fix is available for org.apache.tomcat:tomcat — see the affected versions and patch details below.

Apache Tomcat has cookies without HTTPOnly flag in Set-Cookie header

Published

May 14, 2022

Updated

Feb 8, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

☕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 default configuration of Apache Tomcat 6.x does not include the HTTPOnly flag in a Set-Cookie header, which makes it easier for remote attackers to hijack a session via script access to a cookie.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.tomcat:tomcat`	≥ 6.0.0&&< 6.0.35	6.0.35`org.apache.tomcat:tomcat:6.0.35`

Affected Products

1 product · 27 configurations

Application

tomcatapache

27 versions

6.06.0.06.0.16.0.26.0.36.0.46.0.56.0.66.0.76.0.86.0.96.0.10

Detection & mitigation playbook

Open-source dependency

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.
Fix
Update org.apache.tomcat:tomcat to 6.0.35 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2010-4312 is resolved across your whole dependency graph.
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.

Frequently Asked Questions

The default configuration of Apache Tomcat 6.x does not include the HTTPOnly flag in a Set-Cookie header, which makes it easier for remote attackers to hijack a session via script access to a cookie.

O3 Security · Impact-Aware SCA

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