synced 11 MIN AGO
01 Record

CVE-2026-46423

Rocket.Chat: SAML signature validation skipped when IdP certificate field is empty

CriticalPUBLISHEDCNA: GitHub_M
CNA base score9.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

02 Description

Rocket.Chat: SAML signature validation skipped when IdP certificate field is empty

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 12.5% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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 analysis status
Deferred. NVD last modified this record on 2026-10-25.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-06-24 20:58Z4 MO AGO
Last updated
2026-06-26 03:55Z4 MO AGO
Reserved
2026-05-13
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Weaknesses
  • CWE-347Improper Verification of Cryptographic SignatureBase
Data version
5.2
Document digest
01dc086cd111e9f388f67c0c1d5a2c75aa9e12af2e7036f21552a13e61679145

05 Affected products

VendorProductVersionsPlatforms
RocketChatRocket.Chat>= 8.5.0-rc.0, < 8.5.0, >= 8.4.0-rc.0, < 8.4.1, >= 8.3.0-rc.0, < 8.3.3, >= 8.2.0-rc.0, < 8.2.3, >= 8.1.0-rc.0, < 8.1.4, >= 8.0.0-rc.0, < 8.0.5, >= 7.11.0-rc.0, < 7.13.7, < 7.10.11—

06 References