Dashboard / CVE-2026-82520

CVE-2026-82520

HIGH
MEDIUM Priority: 0.07 BB Relevance: 78/100
Published: 2026-09-03 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: None
VI: None
VA: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
domainaware parsedmarc 0 < 11.0.1

References & Advisories (3)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.78%
Raw Score 0.007840
Percentile 56.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00784
2026-11-12
0.00784
2026-11-10
0.00784
2026-11-09
0.00784
2026-11-08
0.00784

Intelligence Sources

mitre ref →

External Links