Watch card · compiled automatically, not analysed

CVE-2026-101356

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response…

Vulnerable dependency

AI summaryTomcat's HTTP/2 handling of async servlets can mix up requests or responses between users after an error (11.0.22–11.0.26, 10.1.55–10.1.60, 9.0.118+).

Our research pipeline compiles this page from public data. It contains no human judgement from PlainCVE; rely on the original advisories for facts.

Our status

Candidate — Not queued for research yet. Below is public data only.

Key numbers

CVSS: 9.1 v3.1
CISA KEV: Not listed
EPSS: 0.52%
Momentum: 4.1 Steady

Timeline

2026-10-20DisclosedNVD
2026-10-20First reportedoss-security

How much time similar vulnerabilities gave

This item is not mapped to a category yet, so here are the overall numbers: of 390 vulnerabilities disclosed since 2025 and added to KEV, the median time from disclosure to KEV was 5 days; 54% were added within 7 days.

This one: not in KEV so far (that does not mean it is not exploited).

Counts only vulnerabilities CISA has confirmed as exploited; disclosure is the NVD publication date, which can differ from the vendor advisory.

What drives the momentum

Coverage(mailing lists)+4.1

Coverage

2026-10-20 oss-security

Primary sources

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