How severe is CVE-2026-34486?

CVE-2026-34486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-34486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34486?

CVE-2026-34486 primarily affects Apache Tomcat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-34486?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-34486 have an EU (EUVD) identifier?

Yes. CVE-2026-34486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21056.

When was CVE-2026-34486 published?

CVE-2026-34486 was published on 2026-04-09 and last updated on 2026-07-06.

CVE-2026-34486

CVE-2026-34486 is a high-severity vulnerability in Apache Tomcat with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-311.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21056
Weakness: CWE-311
Affected product: Apache Tomcat
Published: 2026-04-09
Last modified: 2026-07-06

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.

Frequently asked questions

What is CVE-2026-34486?: 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.
How severe is CVE-2026-34486?: CVE-2026-34486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-34486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34486?: CVE-2026-34486 primarily affects Apache Tomcat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-34486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-34486 have an EU (EUVD) identifier?: Yes. CVE-2026-34486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21056.
When was CVE-2026-34486 published?: CVE-2026-34486 was published on 2026-04-09 and last updated on 2026-07-06.

References

Affected products (3)

cpe:2.3:a:apache:tomcat:9.0.116:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.53:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.20:*:*:*:*:*:*:*

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