critical
CVE-2026-5720
miniupnpd contains an integer underflow vulnerability in SOAPAction he ...
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).
Description
miniupnpd contains an integer underflow vulnerability in SOAPAction header parsing that allows remote attackers to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single quote. Attackers can trigger an out-of-bounds memory read by exploiting improper length validation in ParseHttpHeaders(), where the parsed length underflows to a large unsigned value when passed to memchr(), causing the process to scan memory far beyond the allocated HTTP request buffer.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.24 | miniupnpd | 2.3.10-r0 |
| alpine edge | miniupnpd | 2.3.10-r0 |
| debian 11 | miniupnpd | no fix listed |
| debian 12 | miniupnpd | no fix listed |
| debian 13 | miniupnpd | 2.3.9-2+deb13u1 |
| debian 14 | miniupnpd | 2.3.10-1 |
| echo | miniupnpd | 2.3.9-2+deb13u1 |
| rapidfort debian 12 | miniupnpd | 0:2.3.10-1, 0:2.3.9-2+deb13u1 |
| rapidfort debian 13 | miniupnpd | 0:2.3.10-1, 0:2.3.9-2+deb13u1 |
| rapidfort fedora 43 | miniupnpd | 2.3.10-1.fc43 |
| rapidfort ubuntu 20.04 | miniupnpd | 0:2.3.10-1 |
| rapidfort ubuntu 22.04 | miniupnpd | 0:2.3.10-1 |
Show all 18 entries from 18 sources
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.24 | miniupnpd | 2.3.10-r0 |
| alpine edge | miniupnpd | 2.3.10-r0 |
| debian 11 | miniupnpd | no fix listed |
| debian 12 | miniupnpd | no fix listed |
| debian 13 | miniupnpd | 2.3.9-2+deb13u1 |
| debian 14 | miniupnpd | 2.3.10-1 |
| echo | miniupnpd | 2.3.9-2+deb13u1 |
| rapidfort debian 12 | miniupnpd | 0:2.3.10-1, 0:2.3.9-2+deb13u1 |
| rapidfort debian 13 | miniupnpd | 0:2.3.10-1, 0:2.3.9-2+deb13u1 |
| rapidfort fedora 43 | miniupnpd | 2.3.10-1.fc43 |
| rapidfort ubuntu 20.04 | miniupnpd | 0:2.3.10-1 |
| rapidfort ubuntu 22.04 | miniupnpd | 0:2.3.10-1 |
| rapidfort ubuntu 24.04 | miniupnpd | 0:2.3.10-1 |
| ubuntu 18.04-ESM | miniupnpd | 2.0.20171212-2ubuntu0.1~esm1 |
| ubuntu 20.04-ESM | miniupnpd | 2.1-6.1ubuntu0.1~esm1 |
| ubuntu 22.04 | miniupnpd | no fix listed |
| ubuntu 24.04 | miniupnpd | no fix listed |
| ubuntu 26.04 | miniupnpd | no fix listed |
References
- https://github.com/miniupnp/miniupnp/
- https://github.com/miniupnp/miniupnp/commit/f56bd09b2f2650126b832c5f30a65a09e28167fa
- https://ubuntu.com/security/notices/USN-8731-1
- https://www.cve.org/CVERecord?id=CVE-2026-5720
- https://www.vulncheck.com/advisories/miniupnpd-integer-underflow-soapaction-header-parsing