CVE-2026-113582

Apache Abdera: XML external entity expansion in Atom document parsing

State
Published
Severity
8.7 High
Published
Oct 22, 2026
Updated
Oct 30, 2026
Reserved
Oct 20, 2026

Read the record on cve.org

Description

UNSUPPORTED WHEN ASSIGNED Improper restriction of XML external entity references in Apache Abdera allows an attacker to access sensitive data or make server-side requests when an application parses attacker-controlled XML with Abdera.

This issue affects Apache Abdera: all versions.

Apache Abdera is retired and no longer supported, so we do not plan to release a version that fixes this issue. Users are recommended to migrate to a maintained alternative. Applications that cannot migrate should ensure that untrusted XML cannot reach the affected Abdera parser or JDBC adapter parsing paths. Actively maintained downstream products may still be impacted if they include an affected Abdera artifact.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:Napache
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Napache

Weaknesses

  • CWE-611 Improper Restriction of XML External Entity Reference

Affected Products

ProductVersions
Apache AbderaApache Software Foundation
  • all versionsAffected
Apache AbderaApache Software Foundation
  • all versionsAffected
Apache AbderaApache Software Foundation
  • cb5a3646fc8b2a620dba5bdde3a6b7a3753b1be2 and laterAffected

References

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