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 server. The problem is patched in versions 5.0.7 and 4.2.7. Previous versions can be upgraded using the Overleaf toolkit bin/upgrade command. Users unable to upgrade may block POST requests to /spelling/check via a Web Application Firewall will prevent access to the vulnerable spell check feature. However, upgrading is advised.
CVE-2024-45312
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.5% (38th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
The CVE record names the fixed release — apply it.
- CVSS v3
- 5.3
- EG Score
- 5.3MEDIUMmedium confidence
- EG Risk
- 39EG Risk 39/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity53% × 45%Exploitation0% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.5%
- EPSS %ILE
- 39th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 2, 2024
Last Modified
September 25, 2024
References (3)
- security-advisories@githubhttps://github.com/overleaf/overleaf/commit/b5e5d39c3ad4e7763d42b837738955f8ded4dcd3
- security-advisories@githubhttps://github.com/overleaf/overleaf/security/advisories/GHSA-pxm4-p454-vppg
- security-advisories@githubhttps://github.com/overleaf/toolkit
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 34× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 183 total refreshes for this CVE.
- 2026-10-10 19:58 UTCEPSS rescore
- 2026-10-10 00:25 UTCOSV refresh
- 2026-10-09 20:05 UTCEPSS rescore
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- 2026-09-30 19:53 UTCEG score recompute
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- 2026-09-20 20:14 UTCEPSS rescore
- 2026-09-20 08:43 UTCOSV refresh
- 2026-09-19 15:40 UTCEPSS rescore
- 2026-09-18 19:26 UTCEPSS rescore
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- 2026-09-18 19:26 UTCEPSS rescore
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- 2026-09-01 11:38 UTCOSV refresh
- 2026-08-30 19:16 UTCEPSS rescore
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- 2026-08-15 11:37 UTCOSV refresh
- 2026-08-15 01:28 UTCEPSS rescore
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- 2026-08-12 13:49 UTCEPSS rescore
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- 2026-08-05 19:16 UTCEPSS rescore
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- 2026-08-02 02:25 UTCEPSS rescore
- 2026-08-01 04:14 UTCEPSS rescore
- 2026-07-31 00:50 UTCOSV refresh
- 2026-07-30 16:26 UTCEPSS rescore
- 2026-07-30 01:29 UTCEPSS rescore
- 2026-07-28 15:34 UTCEPSS rescore
- 2026-07-27 14:11 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-25 14:16 UTCEPSS rescore
- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:40 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-20 17:06 UTCEPSS rescore
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- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2024-45312?
When was CVE-2024-45312 disclosed?
Is CVE-2024-45312 actively exploited?
What is the CVSS score of CVE-2024-45312?
How do I remediate CVE-2024-45312?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-45312
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