CVE-2026-77121
mediumA user account with permission to deploy artifacts to a hosted Maven repository could upload a POM file containing an oversized metadata field.
Vendor / product: Sonatype — nexus repository manager
A user account with permission to deploy artifacts to a hosted Maven repository could upload a POM file containing an oversized metadata field. This causes future attempts to list or browse that repository's components to permanently fail until an administrator repairs the underlying data. Only the targeted repository is affected; other repositories and overall server health remain unaffected.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-02 18:21
Modified: 2026-10-07 13:24
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
sonatype / nexus_repository_manager ≥3.26.0 <3.95.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://support.sonatype.com/hc/en-us/articles/54635665756691/
References
- https://help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html 103e4ec9-0a87-450b-af77-479448ddef11
- https://support.sonatype.com/hc/en-us/articles/54635665756691/ 103e4ec9-0a87-450b-af77-479448ddef11
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗