CVE-2026-82520

Published: Sep 3, 2026Modified: Sep 4, 2026

8.7

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

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.

Related CWEs

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

References (4)

https://github.com/domainaware/parsedmarc/releases/tag/11.0.1

Source: disclosure@vulncheck.com

https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4r

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/parsedmarc-zip-bomb-dos-via-compressed-email-attachments

Source: disclosure@vulncheck.com

https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4r

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.