CVE-2026-82520parsedmarc < 11.0.1 Zip Bomb DoS via Compressed Email Attachments
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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parsedmarc before 11.0.1 decompresses gzip and ZIP attachments in a single unbounded read with no limit on decompressed output size. Because parsedmarc automatically processes incoming DMARC report emails without user interaction, an unauthenticated remote attacker can send a crafted email with a highly compressed attachment to the monitored mailbox, causing the parsedmarc process to allocate memory proportional to the uncompressed size and exhaust available RAM.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-409
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
domainaware parsedmarc domainaware:parsedmarc (from the name) | before 11.0.1 | CNA record |
References
- https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4rvendor-advisory
- https://github.com/domainaware/parsedmarc/releases/tag/11.0.1release-notes, patch
- https://www.vulncheck.com/advisories/parsedmarc-zip-bomb-dos-via-compressed-email-attachmentsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.