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CVE-2026-34486

Apache Tomcat Missing Encryption of Sensitive Data

7.5 HIGHActively exploited (CISA KEV)EPSS 6.56%
  1. Published9 Apr 2026
  2. Added to CISA KEV4 Aug 2026
  3. Remediation due7 Aug 2026
Actively exploited (CISA KEV)

Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor. This vulnerability can be chained with CVE‑2025‑24813.

Added to KEV: 4 Aug 2026Federal remediation due: 7 Aug 2026

Description

Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Apache Tomcat10.1.53 · 11.0.20 · 9.0.116
Redhat Jboss Web Server7.0.0
Redhat Enterprise Linux10.0 · 8.0 · 9.0
Redhat Enterprise Linux Els7.0
Redhat Enterprise Linux Eus10.0
Redhat Enterprise Linux Tus8.8
Redhat Enterprise Linux Update Services For Sap Solutions8.8 · 9.2 · 9.4 · 9.6

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

and 11 more references

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Frequently asked

Is CVE-2026-34486 being actively exploited?

Yes. CVE-2026-34486 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 4 Aug 2026.

How severe is CVE-2026-34486?

CVE-2026-34486 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 6.56% probability of exploitation.

Which products are affected by CVE-2026-34486?

Affected products include Apache Tomcat, Redhat Jboss Web Server, Redhat Enterprise Linux, Redhat Enterprise Linux Els, Redhat Enterprise Linux Eus, and 2 more.

How do I fix CVE-2026-34486?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34486 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.