HIGH 8.7 NVD
CVE-2026-82520
parsedmarc before 11.0.1 decompresses gzip and ZIP attachments in a single unbounded read with no limit on decompressed output size. Because parsedmarc automati
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.
References
- https://github.com/domainaware/parsedmarc/releases/tag/11.0.1
- https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4r
- https://www.vulncheck.com/advisories/parsedmarc-zip-bomb-dos-via-compressed-email-attachme
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-03 via NVD.
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