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VulnerabilityPublished

CVE-2026-115364: openbao · Missing Authorization

Affects openbaoSource CVE Database V5

0

Not known to be exploited · CVSS 2.1 Low : upgrade to 2.6.3 when convenient.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-10-23.

Patch
Available – fixed in 2.6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/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
  • <2.6.3
Fixed in
  • 2.6.3
Goopenbaopkg:golang/openbaoOther threatsAffected
  • <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.

AI-suggested

Upgrade OpenBao to version 2.6.3 or later, where the missing authorization check has been fixed. No other mitigation is required as the fix addresses the vulnerability directly.

Description

OpenBao versions prior to 2.6.3 have a missing authorization check vulnerability that allows attackers to stop Agent and Proxy services by omitting a required header. When the require_request_header setting is enabled, attackers can exploit server-side request forgery to send requests to shutdown endpoints, causing service disruption.

References

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