CVE-2026-113582 PUBLISHED

Apache Abdera: XML external entity expansion in Atom document parsing

Assigner: apache
Reserved: 20.10.2026 Published: 22.10.2026 Updated: 22.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 8.7

Product Status

Vendor Apache Software Foundation
Product Apache Abdera
Versions Default: unaffected
  • affected from 0 to * (incl.)
Vendor Apache Software Foundation
Product Apache Abdera
Versions Default: unaffected
  • affected from 0 to * (incl.)
Vendor Apache Software Foundation
Product Apache Abdera
Versions Default: unaffected
  • affected from cb5a3646fc8b2a620dba5bdde3a6b7a3753b1be2 to * (incl.)

Credits

  • Fabian Foerg of Addepar, Inc. finder

References

Problem Types

  • CWE-611 Improper Restriction of XML External Entity Reference CWE