TI-2026-41819 Aliases CVE-2026-58066 GHSA-f3wj-pr2w-q3fm

Improper authentication in Rocket.Chat

MEDIUM 49CWE-287Published 2026-07-30 · Updated 2026-07-31

Key facts

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

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00382 32nd percentileScored 2026-11-07

Fix Fixed Rocket.Chat (Rocket.Chat): 8.7.0, 8.6.1, 8.5.2 +6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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
Rocket.Chat	Rocket.Chat	before 8.7.0; before 8.6.1; before 8.5.2; before 8.4.5; before 8.3.7; before 8.2.7; before 8.1.7; before 8.0.8; before 7.10.14	8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, 7.10.14	Patch available	CNA

Rocket.Chat VendorRocket.Chat Affected before 8.7.0; before 8.6.1; before 8.5.2; before 8.4.5; before 8.3.7; before 8.2.7; before 8.1.7; before 8.0.8; before 7.10.14 Fixed in 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, 7.10.14 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:rocket.chat:rocket.chat::::::::	before 7.10.14; 8.0.0 to before 8.0.8; 8.1.0 to before 8.1.7; 8.2.0 to before 8.2.7; 8.3.0 to before 8.3.7; 8.4.0 to before 8.4.5; 8.5.0 to before 8.5.2; 8.6.0 to before 8.6.1	Vulnerable	Rocket.Chat

cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* Versions before 7.10.14; 8.0.0 to before 8.0.8; 8.1.0 to before 8.1.7; 8.2.0 to before 8.2.7; 8.3.0 to before 8.3.7; 8.4.0 to before 8.4.5; 8.5.0 to before 8.5.2; 8.6.0 to before 8.6.1 Vulnerable ·Rocket.Chat

Remediation

Fix · CNA Rocket.Chat (Rocket.Chat) Fixed in 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, 7.10.14

Timeline

2026-10-02 Threatist record created from CVE-2026-58066
2026-10-03 Alias added: GHSA-f3wj-pr2w-q3fm

References

Advisory 1

https://hackerone.com/reports/3827674

Other 1

https://github.com/RocketChat/Rocket.Chat/pull/41233

TI-2021-05772 A improper input sanitization vulnerability exists in Rocket.Chat server 3.11, 3.12 &… CVSS 3.1CRITICAL 9.8
TI-2022-13921 SQL injection in Rocket.Chat CVSS 3.1HIGH 8.8
TI-2026-18910 Rocket.Chat Unauthorized Access to OAuth App Details CVSS 3.1HIGH 7.7
TI-2022-12398 Improper authentication in Rocket.Chat Mobile app CVSS 3.1MEDIUM 6.8
TI-2022-13929 Information disclosure in Rocket.Chat CVSS 3.1MEDIUM 6.5
TI-2022-15931 Cross-site scripting in Rocket.chat CVSS 3.1MEDIUM 5.4

See all 61 →

Sources

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