CVE-2024-45312: Overleaf is a web-based collaborative LaTeX editor

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2024-45312 is a medium-severity flaw (CVSS 5.3) affecting overleaf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Overleaf is a web-based collaborative LaTeX editor. Overleaf Community Edition and Server Pro prior to version 5.0.7 (or 4.2.7 for the 4.x series) contain a vulnerability that allows an arbitrary language parameter in client spelling requests to be passed to the `aspell` executable running on the server. This causes `aspell` to attempt to load a dictionary file with an arbitrary filename. File access is limited to the scope of the overleaf serv

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-22, CWE-641, CWE-74
Published	2024-09-02
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: overleaf

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

Am I affected?

Timeline

2024-09-02 18:15 UTCPublished CVE record published
2026-06-17 07:54 UTCUpdated Record last modified

overleaf overleaf UPGRADE

Affected: >= 4.0.0 and < 4.2.7 · >= 5.0.0 and < 5.0.7

Fixed in: 4.2.7, 5.0.7

Safe to downgrade to: a release before 4.0.0

1. Check installed version

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

2. UPGRADE to 4.2.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade overleaf

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade overleaf

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 4.0.0 (Debian / Ubuntu)

apt-cache madison overleaf sudo apt install overleaf=<VERSION_BEFORE_4.0.0> sudo apt-mark hold overleaf

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

dnf --showduplicates list overleaf sudo dnf downgrade overleaf-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add overleaf

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-2024-45312?

overleaf: upgrade to 4.2.7, 5.0.7. Exact commands for each OS are on this page.

Is CVE-2024-45312 being exploited?

CVE-2024-45312 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-2024-45312 affect?

CVE-2024-45312 affects overleaf. Severity is medium (CVSS 5.3). Overleaf is a web-based collaborative LaTeX editor. Overleaf Community Edition and Server Pro prior to version 5.0.7 (or 4.2.7 for the 4.x series) contain a vulnerability that allows an arbitrary language parameter in client spelling reques

How urgent is CVE-2024-45312?

Priority 34/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-45313 MEDIUM 5.4 UPGRADE Overleaf is a web-based collaborative LaTeX editor

References

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