SCA: security update for github.com/openbao/openbao (GHSA-6mwx-4547-5vc9)

medium Tenable Cloud Security Plugin ID 443697

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, OpenBao used
EscapeLDAPValue, an RFC 4514 distinguished-name escaping function, where RFC 4515 LDAP search-filter
escaping was required in sdk/helper/ldaputil/client.go GetUserDN. With the LDAP authentication backend
configured for an Active Directory UPNDomain path or UserDN and UserAttr binding, an attacker-controlled
username containing filter metacharacters could alter the search predicate and select a different
directory entry because EscapeLDAPValue does not neutralize the characters handled by ldap.EscapeFilter. A
resulting token could be associated with another LDAP identity and gain access to secrets, policies, or
modification capabilities assigned to that identity. This issue is fixed in version 2.5.5.
(CVE-2026-55770)

Solution

Update the github.com/openbao/openbao library and its related packages to version 0.0.0-20260617104213-10b7825c714c or later.

See Also

https://github.com/advisories/GHSA-6mwx-4547-5vc9

Plugin Details

Severity: Medium

ID: 443697

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 9/16/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.61

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-55770

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 6/17/2026

Reference Information

CVE: CVE-2026-55770

cwe: CWE-90