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VulnerabilityPublished

CVE-2026-17599: Sonatype Nexus Repository 3 · Unverified Password Change

Affects Sonatype Nexus Repository 3Source CVE Database V5

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Not known to be exploited · CVSS 6.9 Medium : upgrade to 3.95.0 when convenient.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.95.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade Sonatype Nexus Repository 3 to 3.95.0.

Affected software

ProductAffectedFixed in
SonatypeNexus Repository 3Affected
  • >=3.17.0 <3.95.0
Fixed in
  • 3.95.0
Mavensonatype/nexus_repository_managerpkg:maven/sonatype/nexus_repository_managerOther threatsAffected
  • =3.17.0
Fixed in–

CPE configurations (147)

  • cpe:2.3:a:sonatype:nexus_repository_manager:3.17.0:*:*:*:*:*:*:*
  • cpe:2.3:a:sonatype:nexus_repository_manager:3.17.1:*:*:*:*:*:*:*
  • cpe:2.3:a:sonatype:nexus_repository_manager:3.17.2:*:*:*:*:*:*:*
  • cpe:2.3:a:sonatype:nexus_repository_manager:3.18.0:*:*:*:*:*:*:*
  • cpe:2.3:a:sonatype:nexus_repository_manager:3.18.1:*:*:*:*:*:*:*
  • cpe:2.3:a:sonatype:nexus_repository_manager:3.19.0:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict nexus:* permissions to trusted users only and monitor for unusual password change activity related to onboarding endpoints.

Description

Nexus Repository 3 contained an endpoint used to change the administrator account password during initial onboarding. This endpoint did not verify that onboarding was still in progress before allowing the password change, relying instead on the presence of a local onboarding artifact. As a result, an account holding the nexus:* permission could invoke the endpoint outside the intended onboarding flow to replace the administrator password, and existing sessions were not invalidated after the change.

References

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