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TI-2026-56884 Aliases CVE-2026-82521

parsedmarc 9.0.6 < 11.0.1 Path Traversal via Forensic Report Subject

Priority LOW 34CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

parsedmarc 9.0.6 before 11.0.1 writes forensic report sample files using an output path derived from the email subject. When the subject consists entirely of path traversal sequences, the filename sanitization function produces an empty string, and a fallback to the raw unsanitized subject causes the resulting file to be written outside the intended samples directory. An attacker who can cause a forensic failure report with a crafted Subject to be processed can write a dot-prefixed file with attacker-controlled content to an ancestor directory of the configured samples output path. Exploitation requires that file output for forensic report samples is enabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00429 37th percentileScored 2026-11-07
Fix Fixed parsedmarc (domainaware): 11.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
domainawareparsedmarc9.0.6 to before 11.0.111.0.1Patch availableCNA
  • parsedmarc Vendordomainaware Affected 9.0.6 to before 11.0.1 Fixed in 11.0.1 Patch available CNA

Remediation

  • Fix · CNA parsedmarc (domainaware) Fixed in 11.0.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    domainaware parsedmarc 11.0.1

    2 records Highest priority Priority HIGH 1 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-56883 parsedmarc < 11.0.1 Zip Bomb DoS via Compressed Email AttachmentsPriority HIGH 77
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82521

References

Patch 1

Advisory 1

  • TI-2026-56883 parsedmarc < 11.0.1 Zip Bomb DoS via Compressed Email Attachments CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences