HIGHCVSS 7.5Vulnerability
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 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.
Properties
- severity
- HIGH
- cvss_severity
- HIGH
- cvss_score
- 7.5
- retrieved_at
- 2026-09-25T15:10:08+00:00
- score
- 7.5
- last_source
- NVD
- cve_id
- CVE-2026-82520
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- signal_observed_at
- 2026-09-25T15:10:08+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-09-03T21:17:22.407
- last_modified
- 2026-09-24T20:43:32.537
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Handling of Highly Compressed Data (Data Amplification)
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