# Aria2 vulnerabilities

Source: https://junglewise.ai/threats/vendors/aria2  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/aria2.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 2 vulnerabilities in Aria2: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-75421, was published on 25 August 2026. Nothing was published in the last eight weeks. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 2 (0 critical, 0 exploited in the wild)

## About Aria2

aria2 is a free, open-source download utility that supports multiple protocols and connections.

## Latest Aria2 vulnerabilities

- [CVE-2026-75421: aria2 stack-buffer-underflow in IOFile::getLine](https://junglewise.ai/threats/cve-2026-75421-aria2-stack-buffer-underflow-in-iofile-getline) (medium, CVSS 4, published 25 Aug 2026)
- [CVE-2026-8367: aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate…](https://junglewise.ai/threats/cve-2026-8367-aria2-aria2c-improper-certificate-validation-via-incorrect-eku) (medium, CVSS 4.8, published 13 May 2026)

## Most severe Aria2 vulnerabilities

- [CVE-2026-8367: aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate…](https://junglewise.ai/threats/cve-2026-8367-aria2-aria2c-improper-certificate-validation-via-incorrect-eku) (medium, CVSS 4.8, published 13 May 2026)
- [CVE-2026-75421: aria2 stack-buffer-underflow in IOFile::getLine](https://junglewise.ai/threats/cve-2026-75421-aria2-stack-buffer-underflow-in-iofile-getline) (medium, CVSS 4, published 25 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Aria2 technologies

- [Aria2](https://junglewise.ai/threats/technologies/aria2): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Aria2 vulnerabilities", https://junglewise.ai/threats/vendors/aria2, 11 November 2026.