GHSA-3637-v6vq-xqqw
HIGHHarbor fails to validate the user permissions when updating tag retention policies
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
github.com/goharbor/harbor🐹github.com/goharbor/harbor🐹github.com/goharbor/harborReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
Harbor fails to validate the user permissions when updating tag retention policies. API call:
PUT /retentions/{id}
By sending a request to update a tag retention policy with an id that belongs to a project that the currently authenticated user doesn’t have access to, the attacker could modify tag retention policies configured in other projects.
Patches
This and similar issues are fixed in Harbor v2.5.2 and later. Please upgrade as soon as possible.
Workarounds
There are no workarounds available.
For more information
If you have any questions or comments about this advisory:
- Open an issue in the Harbor GitHub repository
Credits
Thanks to Gal Goldstein and Daniel Abeles from Oxeye Security for reporting this issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/goharbor/harbor | ≥ 1.0.0&&< 1.10.13 | 1.10.13 |
| 🐹Go | github.com/goharbor/harbor | ≥ 2.0.0&&< 2.4.3 | 2.4.3 |
| 🐹Go | github.com/goharbor/harbor | ≥ 2.5.0&&< 2.5.2 | 2.5.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/goharbor/harbor. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/goharbor/harbor to 1.10.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3637-v6vq-xqqw is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-3637-v6vq-xqqw is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-3637-v6vq-xqqw. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-3637-v6vq-xqqw in your dependencies?
O3 detects GHSA-3637-v6vq-xqqw across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.