PatchTheCVECVE-2026-57487: pupnp is an SDK for development of UPnP device and control point applications
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This week
HIGH 7.5REMOTEUPGRADE
CVE-2026-57487 is a high-severity flaw (CVSS 7.5) affecting pupnp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, Transfer-Encoding: chunked causes the HTTP parser in upnp/src/genlib/net/http/httpparser.c to leave parser->content_length at zero while parser_parse_chunky_entity and parser_parse_chunky_body accumulate decoded bytes in parser->msg.entity. The g_maxContentLength checks in http_RecvMessage in upnp/src/genlib/net/http/httpreadwrite.c therefore reject ove
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 74%) |
| CISA exploited list | No |
| Weakness | CWE-770 |
| Published | 2026-10-16 |
| Last modified | 2026-10-23 |
Publisher (CNA): GitHub, Inc. · Vendor: pupnp project
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
pupnp project pupnp UPGRADE
Affected: < 2.0.2
Fixed in: 2.0.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy pupnp || rpm -q pupnp || pupnp --version
2. UPGRADE to 2.0.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade pupnp
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade pupnp
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Exact fixes by distribution
Fedora 46 · kwin-zones · FIXED · 1.0.13-1.fc46 · FEDORA-2026-95888f332b · source
sudo dnf upgrade --advisory=FEDORA-2026-95888f332b
Fedora ELN · nginx-mod-brotli · FIXED · 1.0.0~rc-16.eln159 · FEDORA-2026-501a6a8273 · source
sudo dnf upgrade --advisory=FEDORA-2026-501a6a8273
Debian 13 · pupnp · NO FIX YET
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-55862 MEDIUM 6.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications
- CVE-2026-57486 HIGH 7.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications