Is CVE-2026-41103 in the CISA KEV catalog?

No. CVE-2026-41103 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-41103?

CVE-2026-41103 has a CVSS v3 base score of 9.1 (Critical).

What is the EPSS score for CVE-2026-41103?

CVE-2026-41103 has an EPSS score of 5.38% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41103?

Upgrade confluence saml sso to 7.4.0 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-41103

CRITICALEPSS 92th pctl

9.1

CVSS v3

NVD

Description

Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.

CWE-303

How to fix

Remediation Available

confluence saml ssoNVD

Affected:< 7.4.0Fixed in:7.4.0CVE-2026-41103derived from NVD

jira saml ssoNVD

Affected:< 1.3.3Fixed in:1.3.3CVE-2026-41103derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Exploit Intelligence

5.38%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-303 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-29357	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-8863	High	8.8	77%	-	-
CVE-2023-32152	Medium	6.5	29%	-	-
CVE-2023-32148	Medium	6.5	27%	-	-
CVE-2022-20695	Critical	10.0	20%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-16.