CVE-2026-26014: Pion DTLS is a Go implementation of Datagram Transport Layer Security

Q: How do I fix CVE-2026-26014?

dtls: upgrade to 3.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-26014 being exploited?

CVE-2026-26014 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-2026-26014 affect?

CVE-2026-26014 affects dtls. Severity is medium (CVSS 5.9). Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentica

Q: How urgent is CVE-2026-26014?

Priority 39/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.9REMOTEUPGRADE

CVE-2026-26014 is a medium-severity flaw (CVSS 5.9) affecting dtls. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentication key and spoof data by leveraging the reuse of a nonce in a session and a "forbidden attack". Upgrade to v3.0.11, v3.1.1, or later.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-02-11
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: pion

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-11 21:16 UTCPublished CVE record published
2026-06-17 10:25 UTCUpdated Record last modified

pion dtls UPGRADE

Affected: < 3.1.0

Fixed in: 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dtls

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dtls

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-26014?

dtls: upgrade to 3.1.0. Exact commands for each OS are on this page.

Is CVE-2026-26014 being exploited?

CVE-2026-26014 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-2026-26014 affect?

CVE-2026-26014 affects dtls. Severity is medium (CVSS 5.9). Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentica

How urgent is CVE-2026-26014?

Priority 39/100. Remotely exploitable, no login, no user action

References

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