CVE-2026-77122Nexus Repository 3 - Incorrect Authorization Allows Disclosure of Member Repository Metadata via Group Repository Permissions
Updated under an hour ago ()
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It affects Sonatype Nexus Repository 3. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An authorization flaw in the REST API repository details endpoint (GET /service/rest/v1/repositories/{repositoryName}) in Sonatype Nexus Repository 3 allowed an account holding read or browse permission on a group repository to retrieve metadata for member repositories on which it held no direct permission, by requesting the endpoint directly for the member repository name. For proxy repositories, the disclosed metadata includes the configured remote URL, which may reveal internal upstream hostnames. This includes the anonymous user if it has been granted this permission; whether the anonymous user holds this permission depends on the role and permission configuration of the specific installation.
- CVSS
- 5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Sonatype
- NVD analysis
- Analyzed
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Sonatype Nexus Repository 3 sonatype:nexus_repository_manager | from 3.38.0 before 3.96.0 | CNA record |
sonatype nexus_repository_manager sonatype:nexus_repository_manager | from 3.38.0 before 3.96.0 | NVD |
References
- https://help.sonatype.com/en/sonatype-nexus-repository-3-96-0-release-notes.htmlpatch, release-notes
- https://support.sonatype.com/hc/en-us/articles/54637328224019/vendor-advisory, mitigation
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.