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Highest advisory severityCritical 3 vendors · 3 advisories

CVE-2026-65182

Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path

CVE-2026-65182: Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a…

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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CVE-2026-65182 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Critical
CVSS base score
9.1 (Apache), 9.1 (NetApp), 8.2 (Red Hat)
CVSS vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N (Red Hat)
Weakness
CWE-551
Fixed releases
  • Apache: 11.0.25, 10.1.58, 9.0.121
  • Red Hat: 11.0.25, 10.1.58, 9.0.121, tomcat, jws6-tomcat-0:10.1.49-16.redhat_00016.1.el10jws, jws6-tomcat-0:10.1.49-16.redhat_00016.1.el8jws and 7 more in the advisory
Vendor advisories
3 from Apache, NetApp, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-65182; bulletin-wide values are not repeated here.

Is CVE-2026-65182 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-65182 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-65182?

Upgrade to a fixed release named by the vendor:

  • Apache: 11.0.25, 10.1.58, 9.0.121
  • Red Hat: 11.0.25, 10.1.58, 9.0.121, tomcat, jws6-tomcat-0:10.1.49-16.redhat_00016.1.el10jws, jws6-tomcat-0:10.1.49-16.redhat_00016.1.el8jws
  • Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue. (Apache)
  • To mitigate this issue, ensure that security constraints in Apache Tomcat's web.xml configuration files are ordered from most specific to least specific. More restrictive constraints for shorter sub-paths must be defined before broader constraints for longer paths. Incorrect ordering can lead to a bypass of intended access controls. After modifying web.xml, a restart or reload of the Apache Tomcat service is required for the changes to take effect, which may temporarily interrupt service availability. (Red Hat)

Vendor advisory comparison

Apache

1 advisory

NetApp

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-65182] Apache Tomcat Vulnerability in NetApp Products

    NTAP-20260902-0012Source published Source updated

    Apache Tomcat versions 11.0.0-M1 through 11.0.24, 10.1.0-M1 through 10.1.57, 9.0.0.M1 through 9.0.120, 8.5.0 through 8.5.100 (EOL), and 7.0.0 through 7.0.109 (EOL) are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information or addition or modification of data. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    • 11.0.0
    • 11.0.24
    • 10.1.0
    • 10.1.57

    6 more entries in the full advisory.

    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh8.2

    High [CVE-2026-65182] Security constraint bypass due to improper access control

    CVE-2026-65182Source published Source updated

    Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue. This Important vulnerability in Apache Tomcat allows for security constraint bypasses, potentially granting unauthorized access to protected web application resources. The flaw occurs when security constraints for longer URL paths are defined before more restrictive constraints for shorter…

    Affected products in this advisory
    • Red Hat JBoss Web Server 6.2.5
    • Red Hat JBoss Web Server 6.2 on RHEL 10
    • Red Hat JBoss Web Server 6.2 on RHEL 8
    • Red Hat JBoss Web Server 6.2 on RHEL 9

    11 more entries in the full advisory.

    Source-reported affected versions
    • 11.0.0
    • 11.0.24
    • 10.1.0
    • 10.1.57

    6 more entries in the full advisory.

    Source-reported fixed versions
    • 11.0.25
    • 10.1.58
    • 9.0.121
    • tomcat

    9 more entries in the full advisory.

    Mitigation guidance
    • To mitigate this issue, ensure that security constraints in Apache Tomcat's web.xml configuration files are ordered from most specific to least specific. More restrictive constraints for shorter sub-paths must be defined before broader constraints for longer paths. Incorrect ordering can lead to a bypass of intended access controls. After modifying web.xml, a restart or reload of the Apache Tomcat service is required for the changes to take effect, which may temporarily interrupt service availability.
    Full advisory and evidenceOpen source bulletin

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