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VulnerabilityPublished

CVE-2026-115366: openbao · Incorrect Authorization

Affects openbaoSource CVE Database V5

0

Not known to be exploited · CVSS 2.0 Low : upgrade to 2.6.3 when convenient.

Data as of 26 Oct 2026, 14:18 UTC

CVSS 4.0 base score
2.0Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade openbao to 2.6.3.

Affected software

ProductAffectedFixed in
openbaoopenbaoAffected
  • >=2.3.0 <2.6.3
Fixed in
  • 2.6.3
Goopenbaopkg:golang/openbaoOther threatsAffected
  • >=2.3.0 <2.6.3
Fixed in
  • 2.6.3

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

Description

OpenBao from 2.3.0 before 2.6.3 contains an improper authorization vulnerability that allows privileged child-namespace tokens to modify plugin registrations because /v1/sys/plugins/catalog/* is not restricted to the root namespace. Attackers can remove existing registrations, create invalid ones, or register installed plugins through a child namespace's sys/ mount, causing denial of service.

References

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