Apache ActiveMQ: LDAPAuthorizationMap allows authorization bypass via DN injection
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 6.3.3, 5.19.12
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 6.3.3, 5.19.12.
- Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
- Exposure?/25Exposure: unknown (data gap). No advisory context yet
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity?/10Severity: unknown (data gap). No CVSS score or vendor rating
- No patch0/5No signal
What would change the score
- Would score about 55 if added to CISA KEV
- Would score about 50 if CISA's SSVC rates exploitation active
- Would score about 22 if advisories confirm default setups are exposed
CVE-2026-108500 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It affects Apache ActiveMQ; fixed in 6.3.3 and 5.19.12.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 0/100 · provisional
- Fix
- Fixed in 6.3.3, 5.19.12
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Apache ActiveMQ servers configured with the LDAPAuthorizationMapPlugin let an authenticated user bypass authorization checks. The user creates or addresses a destination with a crafted name containing LDAP distinguished name special characters, such as commas, plus signs, equals signs, or backslashes, which alter the LDAP search base used for access control lookups.
Read the original description
Input validation vulnerability in Apache ActiveMQ configured to use the LDAPAuthorizationMapPlugin allows an authenticated attacker to create or address a destination with a crafted name containing LDAP DN special characters (such as comma, plus, equals, backslash) can manipulate the LDAP search base used for ACL lookups. This issue affects Apache ActiveMQ: from 6.3.0 before 6.3.3, from 5.19.0 before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.
What to do
Upgrade to a fixed version: 6.3.3, 5.19.12.
Timeline
- CVE published
- First seen by cve.now
- Record last updated
Affected versions
- Apache Software Foundation Apache ActiveMQ
From 6.3.0 · fixed in 6.3.3; From 5.19.0 · fixed in 5.19.12
Evidence 2
- Advisory
- Link
Corrections
None so far.
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Questions about CVE-2026-108500
Is CVE-2026-108500 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-108500?
Apache ActiveMQ: from 6.3.0 before 6.3.3; from 5.19.0 before 5.19.12.Source: cve.now feed data
How do I fix CVE-2026-108500?
Upgrade to a fixed version: 6.3.3, 5.19.12.Source: cve.now feed data