CVE-2026-97055

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.5% of scored records. A rank, not a probability.

NVD base score

9.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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 2026-09-24.

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.

Published

2026-09-24 01:53Z1 MO AGO

Last updated

2026-09-24 12:58Z1 MO AGO

Reserved

2026-09-23

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.2)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-1188Initialization of a Resource with an Insecure DefaultBase

Data version

5.2

Document digest

1ecfcf36e9c6582fcc65894e2d1d263243a0e5147ea2acccc1ac95ec81ebf977

• github.comGitHub Security Advisory (GHSA-c26w-g4j8-39m2)https://github.com/SigNoz/signoz/security/advisories/GHSA-c26w-g4j8-39m2vendor-advisory
• github.comPatch Commithttps://github.com/SigNoz/signoz/commit/67895d366dpatch
• github.comPatch Commithttps://github.com/SigNoz/signoz/commit/b02aae2db3patch
• www.vulncheck.comVulnCheck Advisory: SigNoz before 0.143.0 Authentication Bypass via Empty JWT Secrethttps://www.vulncheck.com/advisories/signoz-before-0.143.0-authentication-bypass-via-empty-jwt-secretthird-party-advisory