GHSA-h27m-3qw8-3pw8 is a medium-severity (CVSS 4.9) Information Exposure vulnerability in github.com/goharbor/harbor. A fix is available for github.com/goharbor/harbor — see the affected versions and patch details below.
Possible ORM Leak Vulnerability in the Harbor
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for GHSA-h27m-3qw8-3pw8.
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.
How urgent is this, really
GHSA-h27m-3qw8-3pw8 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,567 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
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
Administrator users on Harbor could exploit an ORM Leak (https://www.elttam.com/blog/plormbing-your-django-orm/) vulnerability that was present in the /api/v2.0/users endpoint to leak users' password hash and salt values. This vulnerability was introduced into the application because the q URL parameter allowed the administrator to filter users by any column, and the filter password=~ could be abused to leak out a user's password hash character by character.
An attacker with administrator access could exploit this vulnerability to leak highly sensitive information stored on the Harbor database, as demonstrated in the attached writeup by the leaking of users' password hashes and salts. All endpoints that support the q URL parameter are vulnerable to this ORM leak attack, and could potentially be exploitable by lower privileged users to gain unauthorised access to other sensitive information.
Patches
No available
Workarounds
NA
References
Credit
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/goharbor/harbor | ≥ 2.13.0&&< 2.13.1 | 2.13.1go get github.com/goharbor/harbor@v2.13.1 |
| 🐹Go | github.com/goharbor/harbor | ≥ 2.4.0-rc1.1&&< 2.12.4 | 2.12.4go get github.com/goharbor/harbor@v2.12.4 |
| 🐹Go | github.com/goharbor/harbor | all versions | 2.4.0-rc1.0.20250331071157-dce7d9f5cffbgo get github.com/goharbor/harbor@v2.4.0-rc1.0.20250331071157-dce7d9f5cffb |
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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/goharbor/harbor to 2.13.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-h27m-3qw8-3pw8 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-h27m-3qw8-3pw8 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-h27m-3qw8-3pw8. 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-h27m-3qw8-3pw8 in your dependencies?
O3 Security finds GHSA-h27m-3qw8-3pw8 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.