CVE-2024-45626: Apache James server JMAP HTML to text plain implementation in versions below 3.8.2 and 3.7.6 is subject to unb

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MEDIUM 6.5WATCHLISTUPGRADE

CVE-2024-45626 is a medium-severity flaw (CVSS 6.5) affecting james server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Apache James server JMAP HTML to text plain implementation in versions below 3.8.2 and 3.7.6 is subject to unbounded memory consumption that can result in a denial of service. Users are recommended to upgrade to version 3.7.6 and 3.8.2, which fix this issue.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-400
Published	2025-02-06
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2025-02-06 12:15 UTCPublished CVE record published
2026-06-17 07:54 UTCUpdated Record last modified

apache james server UPGRADE

Affected: < 3.7.6 · >= 3.8.0 and < 3.8.2

Fixed in: 3.7.6, 3.8.2

Safe to downgrade to: a release before 3.8.0

1. Check installed version

apt-cache policy james-server || rpm -q james-server || james-server --version

2. UPGRADE to 3.7.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade james-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade james-server

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 3.8.0 (Debian / Ubuntu)

apt-cache madison james-server sudo apt install james-server=<VERSION_BEFORE_3.8.0> sudo apt-mark hold james-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list james-server sudo dnf downgrade james-server-<VERSION_BEFORE_3.8.0> sudo dnf versionlock add james-server

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-2024-45626?

james server: upgrade to 3.7.6, 3.8.2. Exact commands for each OS are on this page.

Is CVE-2024-45626 being exploited?

CVE-2024-45626 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-2024-45626 affect?

CVE-2024-45626 affects james server. Severity is medium (CVSS 6.5). Apache James server JMAP HTML to text plain implementation in versions below 3.8.2 and 3.7.6 is subject to unbounded memory consumption that can result in a denial of service. Users are recommended to upgrade to version 3.7.6 and 3.8.2, wh

How urgent is CVE-2024-45626?

Priority 42/100. On your watchlist

Related CVEs

CVE-2024-37358 HIGH 8.6 UPGRADE Similarly to CVE-2024-34055, Apache James is vulnerable to denial of service through the abuse of IMAP literal

References

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