CVE-2024-34750: Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat

This month

HIGH 7.5REMOTEWATCHLISTUPGRADEDOWNGRADE

CVE-2024-34750 is a high-severity flaw (CVSS 7.5) affecting tomcat, ontap tools. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed. This issue affects Apache Tomcat: from 11.0.0-M1

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.6% (top 8%)
CISA exploited list	No
Weakness	CWE-400, CWE-755
Published	2024-07-03
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2024-07-03 20:15 UTCPublished CVE record published
2026-06-17 07:34 UTCUpdated Record last modified

apache tomcat UPGRADE

Affected: >= 9.0.0 and < 9.0.90 · >= 10.1.0 and < 10.1.25 · 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: 9.0.90, 10.1.25

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 9.0.90 (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.

netapp ontap tools DOWNGRADE

Affected: 9

Fixed in: no fixed release known

Safe to downgrade to: a release before 9

1. Check installed version

apt-cache policy ontap-tools || rpm -q ontap-tools || ontap-tools --version

2. No fixed release: DOWNGRADE to a release before 9 (Debian / Ubuntu)

apt-cache madison ontap-tools sudo apt install ontap-tools=<VERSION_BEFORE_9> sudo apt-mark hold ontap-tools

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ontap-tools sudo dnf downgrade ontap-tools-<VERSION_BEFORE_9> sudo dnf versionlock add ontap-tools

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.

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-2024-34750?

tomcat: upgrade to 9.0.90, 10.1.25; ontap tools: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-34750 being exploited?

CVE-2024-34750 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-2024-34750 affect?

CVE-2024-34750 affects tomcat, ontap tools. Severity is high (CVSS 7.5). Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting

How urgent is CVE-2024-34750?

Priority 59/100. High severity; EPSS top 8%: very likely to be exploited; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Tomcat vulnerabilities

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References

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