high7.5
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.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Parsedmarc | before 11.0.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- 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-attachments
- https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4r