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GHSA-M259-Q69P-995Q

Vulnerability from github – Published: 2026-10-09 12:31 – Updated: 2026-10-09 12:31

Details

Fix: Added a configurable maximum inflated-size cap (default 10 MiB, org.apache.cxf.compression-max-inflated-size system property) to CompressionUtils.inflate(); aborts with DataFormatException once exceeded. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-78384"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-09T11:17:02Z",
    "severity": null
  },
  "details": "CompressionUtils.inflate() decompressed attacker-controlled DEFLATE data with no output-size cap. A small (~KB) crafted payload could expand to gigabytes on the heap. Reachable via JWE decryption when zip=DEF (e.g. JoseSessionTokenProvider with RSA-OAEP key wrap) and via SAML redirect/POST binding token inflation \u2014 in both cases decompression happens before/independent of trust validation.\n\nFix: Added a configurable maximum inflated-size cap (default 10 MiB, org.apache.cxf.compression-max-inflated-size system property) to CompressionUtils.inflate(); aborts with DataFormatException once exceeded.\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.",
  "id": "GHSA-m259-q69p-995q",
  "modified": "2026-10-09T12:31:43Z",
  "published": "2026-10-09T12:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78384"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/xoh63rlxn0m9koft5j4jxrfd0hf81v3q"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/09/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-78384 (GCVE-0-2026-78384)

Vulnerability from cvelistv5 – Published: 2026-10-09 10:18 – Updated: 2026-10-09 11:07

Title

Apache CXF: Unbounded DEFLATE Decompression in CXF JOSE/JWE and SAML Processing (Decompression Bomb)

Summary

CompressionUtils.inflate() decompressed attacker-controlled DEFLATE data with no output-size cap. A small (~KB) crafted payload could expand to gigabytes on the heap. Reachable via JWE decryption when zip=DEF (e.g. JoseSessionTokenProvider with RSA-OAEP key wrap) and via SAML redirect/POST binding token inflation — in both cases decompression happens before/independent of trust validation. Fix: Added a configurable maximum inflated-size cap (default 10 MiB, org.apache.cxf.compression-max-inflated-size system property) to CompressionUtils.inflate(); aborts with DataFormatException once exceeded. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Severity

No CVSS data available.

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 939 records in the last 180 days details

References

2 references

URL	Tags
https://lists.apache.org/thread.html/xoh63rlxn0m9…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/09/6

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache CXF	Affected: 4.2.0 , < 4.2.4 (semver) Affected: 4.0.0 , < 4.1.9 (semver) Affected: 0 , < 3.6.13 (semver)

Credits

Guanping Zhang reported this vulnerability.

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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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.

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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GHSA-M259-Q69P-995Q

CVE-2026-78384 (GCVE-0-2026-78384)

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