CVE-2026-55862: pupnp is an SDK for development of UPnP device and control point applications

Q: How do I fix CVE-2026-55862?

pupnp: upgrade to 2.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-55862 being exploited?

CVE-2026-55862 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-55862 affect?

CVE-2026-55862 affects pupnp. Severity is medium (CVSS 6.5). pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.0, multiple ixml DOM traversal functions process deeply nested XML with unbounded recursion. The iterative XML parser accepts the document, but ixml

Q: How urgent is CVE-2026-55862?

Priority 35/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2026-55862 is a medium-severity flaw (CVSS 6.5) 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 2.0.0, multiple ixml DOM traversal functions process deeply nested XML with unbounded recursion. The iterative XML parser accepts the document, but ixmlPrintDomTreeRecursive in ixml/src/ixml.c and ixmlNode_getElementsByTagNameRecursive, ixmlNode_getElementsByTagNameNSRecursive, ixmlNode_cloneNodeTreeRecursive, and ixmlNode_isAncestor in ixml/src/node.c recurse

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-674
Published	2026-10-16
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc. · Vendor: pupnp project

Am I affected?

Timeline

2026-10-16 16:18 UTCPublished CVE record published
2026-10-23 16:10 UTCUpdated Record last modified

pupnp project pupnp UPGRADE

Affected: < 2.0.0

Fixed in: 2.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pupnp || rpm -q pupnp || pupnp --version

2. UPGRADE to 2.0.0 (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 · wasmedge · FIXED · 0.18.1-1.fc46 · FEDORA-2026-4c27216e39 · source

sudo dnf upgrade --advisory=FEDORA-2026-4c27216e39

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.

Quick answers

How do I fix CVE-2026-55862?

pupnp: upgrade to 2.0.0. Exact commands for each OS are on this page.

Is CVE-2026-55862 being exploited?

CVE-2026-55862 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-55862 affect?

CVE-2026-55862 affects pupnp. Severity is medium (CVSS 6.5). pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.0, multiple ixml DOM traversal functions process deeply nested XML with unbounded recursion. The iterative XML parser accepts the document, but ixml

How urgent is CVE-2026-55862?

Priority 35/100. Public exploit reference

Related CVEs

CVE-2026-57486 HIGH 7.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications
CVE-2026-57487 HIGH 7.5 UPGRADE pupnp is an SDK for development of UPnP device and control point applications

References

← Back to latest CVEs