domainaware parsedmarc up to 11.0.0 Email Attachment allocation of resources

Summaryinfo

A vulnerability was found in domainaware parsedmarc up to 11.0.0. It has been rated as problematic. Impacted is an unknown function of the component Email Attachment. Performing a manipulation results in allocation of resources. This vulnerability is identified as CVE-2026-82520. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in domainaware parsedmarc up to 11.0.0. This affects an unknown function of the component Email Attachment. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-82520 since 08/29/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 11.0.1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• domainaware

Name

• parsedmarc

Version

• 11.0

Website

• Product: https://github.com/domainaware/parsedmarc/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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