CVE-2026-82520

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Source
https://cve.org/CVERecord?id=CVE-2026-82520
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82520.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82520
Aliases
  • GHSA-43qf-f35w-2x4r
Published
2026-09-03T20:39:00Z
Modified
2026-10-28T02:31:00Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
parsedmarc < 11.0.1 Zip Bomb DoS via Compressed Email Attachments
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82520.json"
}
References

Affected packages

Git / github.com/domainaware/parsedmarc

Affected ranges

Type
GIT
Repo
https://github.com/domainaware/parsedmarc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
09c88ca2a36af198ebcc85413ce2fa92ff555093
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "11.0.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "11.0.1",
            "range": [
                {
                    "fixed": "09c88ca2a36af198ebcc85413ce2fa92ff555093"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "11.0.1"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

10.*
10.0.0
10.0.3
10.0.4
10.1.0
10.1.1
10.2.0
10.2.1
10.2.2
10.2.4
10.3.0
10.4.0
10.4.1
10.4.2
10.4.3
10.5.0
11.*
11.0.0
5.*
5.16.0
5.17.0
8.*
8.15.1
8.15.2
8.15.4
8.16.0
8.16.1
8.17.0
8.18.1
8.18.2
8.18.3
8.18.4
8.18.5
8.18.6
8.18.7
8.19.0
8.19.1
9.*
9.0.10
9.0.2
9.0.3
9.0.6
9.0.7
9.1.1
9.1.2
9.10.0
9.10.1
9.10.2
9.10.3
9.11.0
9.11.1
9.11.2
9.2.0
9.2.1
9.3.0
9.3.1
9.4.0
9.5.0
9.5.1
9.5.2
9.5.3
9.5.4
9.5.5
9.6.0
9.7.0
9.7.1
9.8.0
9.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82520.json"