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CVE-2026-101296

Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms

Critical9.1EPSS 0.63%
Published
Updated
Reserved
Assigned by
apache

Description

A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Scores

CVSS scores of CVE-2026-101296, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)4.0Critical9.1CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
NVDNVD · Awaiting Analysis4.0Critical9.1CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/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
EPSS (exploitation in 30 days)
0.63% · top 50% of all CVEs (5 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.

Weakness

Affected products

  • Apache Software Foundation · Apache Tomcat

    • affected 11.0.0-M1 – ≤ 11.0.26
    • affected 10.1.0-M1 – ≤ 10.1.60
    • affected 9.0.0.M1 – ≤ 9.0.122
    • affected 8.5.0 – ≤ 8.5.100
    • affected 7.0.0 – ≤ 7.0.109

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .