TI-2026-29714 Aliases CVE-2026-41076

RT: LDAP authentication bypass via empty password

LOW 37CWE-287Published 2026-05-22 · Updated 2026-05-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.9 and prior in addition to 6.0.0 through 6.0.2 contain an authentication bypass vulnerability in RT installations that use LDAP/AD for user authentication. Under certain LDAP server configurations, an attacker may be able to authenticate as any LDAP-backed RT user without supplying valid credentials. This issue has been fixed in versions 5.0.10 and 6.0.3. If developers are unable to upgrade immediately, they can temporarily work around this issue by reviewing their LDAP server's authentication policy to ensure it rejects unauthenticated bind attempts. Upgrading RT remains the recommended fix.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00392 33rd percentileScored 2026-11-07

Fix Fixed rt (bestpractical): 5.0.10, 6.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
bestpractical	rt	before 5.0.10; 6.0.0 to before 6.0.3	5.0.10, 6.0.3	Patch available	CNA

rt Vendorbestpractical Affected before 5.0.10; 6.0.0 to before 6.0.3 Fixed in 5.0.10, 6.0.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:bestpractical:request_tracker::::::::	—	—	bestpractical

cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:* Versions — — ·bestpractical

Remediation

Fix · CNA rt (bestpractical) Fixed in 5.0.10, 6.0.3

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2026-41076
2026-10-09 EPSS moved to the 50th–90th percentile
2026-10-25 EPSS moved to the below the 50th percentile

References

Other 3

TI-2017-03862 The dashboard subscription interface in Request Tracker (RT) 4.x before 4.0.25, 4.2.x… CVSS 3.0HIGH 8.8
TI-2023-21864 Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information… CVSS 3.1HIGH 7.5
TI-2022-09372 Best Practical RT for Incident Response (RTIR) before 4.0.3 and 5.x before 5.0.3 allows SSRF via Scripted Action tools. CVSS 3.1CRITICAL 9.1
TI-2022-09371 Best Practical RT for Incident Response (RTIR) before 4.0.3 and 5.x before 5.0.3 allows SSRF via the whois lookup tool. CVSS 3.1CRITICAL 9.1
TI-2026-29713 RT: SQL injection via entry_aggregator parameter in JSON search CVSS 3.1HIGH 8.8
TI-2023-24078 Best Practical Request Tracker (RT) 5 before 5.0.5 allows Information Disclosure via a… CVSS 3.1HIGH 7.5

See all 76 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences