OpenProject is an open-source, web-based project management software. Versions prior to 16.6.6 and 17.0.2 have an arbitrary file write vulnerability in OpenProject’s repository diff download endpoint (/projects/:project_id/repository/diff.diff) when rendering a single revision via git show. By supplying a specially crafted rev value (for example, rev=--output=/tmp/poc.txt), an attacker can inject git show command-line options. When OpenProject executes the SCM command, Git interprets the attacker-controlled rev as an option and writes the output to an attacker-chosen path. As a result, any user with the :browse_repository permission on the project can create or overwrite arbitrary files that the OpenProject process user is permitted to write. The written contents consist of git show output (commit metadata and patch), but overwriting application or configuration files still leads to data loss and denial of service, impacting integrity and availability. The issue has been fixed in OpenProject 17.0.2 and 16.6.6.
CVE-2026-24685
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 76% of all CVEs by exploit prediction. 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
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 computedSeverity88% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 24%
- KEV
- Not listed
Published
January 28, 2026
Last Modified
June 17, 2026
Advisory Details (1)
Auto-updated Jun 8, 2026Argument Injection on Repository Diff allows Arbitrary File Write and Remote Code Execution · Advisory · opf/openproject · GitHub
https://github.com/opf/openproject/security/advisories/GHSA-74p5-9pr3-r6pwWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 48× 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 108 total refreshes for this CVE.
- 2026-07-27 14:13 UTCEPSS rescore
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Related CVEs(same CWE)
Same CWE
10 shownCWE-77
- CVE-2015-7541EG 10.0CRITICAL
- CVE-2015-1815EG 10.0EPSS p97HIGH
- CVE-2014-1905EG 10.0EPSS p95HIGH
- CVE-2013-2810EG 10.0EPSS p93HIGH
- CVE-2014-5470EG 9.8EPSS p95CRITICAL
- CVE-2013-2513EG 9.8CRITICAL
- CVE-2015-20108EG 9.8CRITICAL
- CVE-2015-10096NVD 5.0EG 9.8CRITICAL
- CVE-2015-20107NVD 7.6EG 9.8EPSS p94CRITICAL
- CVE-2014-4982EG 9.8EPSS p91CRITICAL
Frequently asked(5)
What is CVE-2026-24685?
When was CVE-2026-24685 disclosed?
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What is the CVSS score of CVE-2026-24685?
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Dependency Blast Radius
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