Vulnerability-Lookup

GHSA-F6R2-3PJ4-JMQQ

Vulnerability from github – Published: 2026-10-20 15:31 – Updated: 2026-10-20 21:30

Details

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.

This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

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  "aliases": [
    "CVE-2026-88041"
  ],
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    "cwe_ids": [
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T14:17:04Z",
    "severity": null
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  "details": "Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.\n\n\n\nUsers are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.",
  "id": "GHSA-f6r2-3pj4-jmqq",
  "modified": "2026-10-20T21:30:54Z",
  "published": "2026-10-20T15:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88041"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/dnmm9l3byytg3l66nk1jrqfrl7jty7n1"
    },
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}

CVE-2026-88041 (GCVE-0-2026-88041)

Vulnerability from cvelistv5 – Published: 2026-10-20 13:43 – Updated: 2026-10-20 18:10

Title

Apache Tomcat: HTTP/2 trailer header cross-contamination

Summary

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Severity

No CVSS data available.

CWE

CWE-459 - Incomplete cleanup

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1087 records in the last 180 days details

References

2 references

URL	Tags
https://lists.apache.org/thread.html/dnmm9l3byytg…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M23 , ≤ 11.0.26 (semver) Affected: 10.1.27 , ≤ 10.1.60 (semver) Affected: 9.0.92 , ≤ 9.0.122 (semver)

Credits

Wentao He

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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