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Fencer Vulns
high 7.5

CVE-2025-52894 json

OpenBao Vulnerable to Unauthenticated Rekey Operation Cancellation

published 2025-06-25 16 mo ago modified 2026-09-10 59 d ago also BIT-openbao-2025-52894 , EUVD-2025-19111 , GHSA-prpj-rchp-9j5h , GO-2025-3783

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. OpenBao before v2.3.0 allowed an attacker to perform unauthenticated, unaudited cancellation of root rekey and recovery rekey operations, effecting a denial of service. In OpenBao v2.2.0 and later, manually setting the configuration option `disable_unauthed_rekey_endpoints=true` allows an operator to deny these rarely-used endpoints on global listeners. A patch is available at commit fe75468822a22a88318c6079425357a02ae5b77b. In a future OpenBao release communicated on OpenBao's website, the maintainers will set this to `true` for all users and provide an authenticated alternative. As a workaround, if an active proxy or load balancer sits in front of OpenBao, an operator can deny requests to these endpoints from unauthorized IP ranges.

Patch / fix

  • go github.com/openbao/openbao 0.0.0-20250625150133-fe75468822a2
  • bitnami openbao 2.3.1
  • linuxfoundation openbao 2.3.1
  • openbao openbao 2.3.1
  • linuxfoundation openbao_api 2.3.1
  • openbao openbao_api 2.3.1
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250730T213748-1.1
  • openbao openSUSE Tumbleweed 2.3.1-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2025:15405-1openSUSE-SU-2025:15254-1

  • openbao Alpine 3.24, Alpine 3.23, Alpine 3.22 2.3.1-r0

alpine advisories ALPINE-CVE-2025-52894

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/openbao/openbao
>=0.1.0
<0.0.0-20250625150133-fe75468822a2
all versions
0.0.0-20250625150133-fe75468822a2
bitnami openbao
>=2.2.2, <2.3.1
2.3.1

Affected products

  • openbao openbao

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.