CVE-2024-52316: Unchecked Error Condition vulnerability in Apache Tomcat

Q: How do I fix CVE-2024-52316?

tomcat: upgrade to 9.0.96, 10.1.31; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2024-52316 being exploited?

CVE-2024-52316 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-52316 affect?

CVE-2024-52316 affects tomcat, debian linux. Severity is critical (CVSS 9.8). Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta Authentication (formerly JASPIC) ServerAuthContext component which may throw an exception during the authentication process without ex

Q: How urgent is CVE-2024-52316?

Priority 71/100. Critical severity; EPSS top 6%: very likely to be exploited; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATE

CVE-2024-52316 is a critical-severity flaw (CVSS 9.8) affecting tomcat, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta Authentication (formerly JASPIC) ServerAuthContext component which may throw an exception during the authentication process without explicitly setting an HTTP status to indicate failure, the authentication may not fail, allowing the user to bypass the authentication process. There are no known Jakarta Authentication components that behave in

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	6.2% (top 6%)
CISA exploited list	No
Weakness	CWE-391, CWE-754
Published	2024-11-18
Last modified	2026-06-17

Publisher (CNA): Apache Software Foundation · Vendor: apache · debian

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-18 12:15 UTCPublished CVE record published
2026-06-17 08:06 UTCUpdated Record last modified

apache tomcat UPGRADE

Affected: >= 9.0.0 and < 9.0.96 · >= 10.1.0 and < 10.1.31 · 11.0.0 milestone1 · 11.0.0 milestone10 · 11.0.0 milestone11 · 11.0.0 milestone12 · 11.0.0 milestone13 · 11.0.0 milestone14

Fixed in: 9.0.96, 10.1.31

Safe to downgrade to: a release before 9.0.0

1. Check installed version

apt-cache policy tomcat || rpm -q tomcat || tomcat --version

2. UPGRADE to 9.0.96 (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 9.0.0 (Debian / Ubuntu)

apt-cache madison tomcat sudo apt install tomcat=<VERSION_BEFORE_9.0.0> 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_9.0.0> 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.

debian debian linux MITIGATE

Affected: 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Maven · org.apache.tomcat:tomcat-catalina · FIXED · 9.0.96 · vulnerable: < 9.0.96 · source

Set org.apache.tomcat:tomcat-catalina to 9.0.96 or later in pom.xml or build.gradle, then rebuild and redeploy.

Fedora 46 · byobu · FIXED · 7.23-1.fc46 · FEDORA-2026-08f2b53446 · source

sudo dnf upgrade --advisory=FEDORA-2026-08f2b53446

Ubuntu 20.04 · tomcat9 · NO FIX YET

Ubuntu 22.04 · tomcat9 · NO FIX YET

Ubuntu 24.04 · tomcat9 · NOT AFFECTED

Ubuntu 25.04 · tomcat9 · NOT AFFECTED

Ubuntu 25.10 · tomcat9 · NOT AFFECTED

Debian 12 · tomcat10 · FIXED · 10.1.34-0+deb12u1

sudo apt update && sudo apt install --only-upgrade tomcat10 dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat10)" ge "10.1.34-0+deb12u1" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · tomcat10 · FIXED · 10.1.31-1

sudo apt update && sudo apt install --only-upgrade tomcat10 dpkg --compare-versions "$(dpkg-query -W -f='${Version}' tomcat10)" ge "10.1.31-1" && 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

Debian 13 · 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-10.1.36-1.el10_0

sudo dnf upgrade --advisory=RHSA-2025:7497 rpm -q tomcat

RHEL 8 · tomcat · FIXED · tomcat-9.0.120-1.el8_10

sudo dnf upgrade --advisory=RHSA-2026:68677 rpm -q tomcat

RHEL 8.8 Telecommunications Update Service · tomcat · FIXED · tomcat-9.0.120-1.el8_8

sudo dnf upgrade --advisory=RHSA-2026:68680 rpm -q tomcat

RHEL 8.8 Update Services for SAP Solutions · tomcat · FIXED · tomcat-9.0.120-1.el8_8

sudo dnf upgrade --advisory=RHSA-2026:68680 rpm -q tomcat

RHEL 9 · tomcat · FIXED · tomcat-9.0.110-2.el9_8

sudo dnf upgrade --advisory=RHSA-2026:18916 rpm -q tomcat

Amazon Linux 2023 · see advisory · FIXED · ALAS2023-2025-814 · source

sudo dnf update --advisory=ALAS2023-2025-814

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-2024-52316 (0 stars)

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.

Quick answers

How do I fix CVE-2024-52316?

tomcat: upgrade to 9.0.96, 10.1.31; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-52316 being exploited?

CVE-2024-52316 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-2024-52316 affect?

CVE-2024-52316 affects tomcat, debian linux. Severity is critical (CVSS 9.8). Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta Authentication (formerly JASPIC) ServerAuthContext component which may throw an exception during the authentication process without ex

How urgent is CVE-2024-52316?

Priority 71/100. Critical severity; EPSS top 6%: very likely to be exploited; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Tomcat vulnerabilities · Debian vulnerabilities

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References

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