PatchTheCEVCVE-2026-34986: Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, inc
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This month
HIGH 7.5REMOTEUPGRADE
CVE-2026-34986 is a high-severity flaw (CVSS 7.5) affecting go-jose. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.4 and 3.0.5, decrypting a JSON Web Encryption (JWE) object will panic if the alg field indicates a key wrapping algorithm (one ending in KW, with the exception of A128GCMKW, A192GCMKW, and A256GCMKW) and the encrypted_k
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Publisher (CNA): GitHub, Inc. · Vendor: go-jose project
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
go-jose project go-jose UPGRADE
Affected: >= 3.0.0 and < 3.0.5 · >= 4.0.0 and < 4.1.4
Fixed in: 3.0.5, 4.1.4
Safe to downgrade to: a release before 3.0.0
1. Check installed version
apt-cache policy go-jose || rpm -q go-jose || go-jose --version
2. UPGRADE to 3.0.5 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade go-jose
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade go-jose
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)
apt-cache madison go-jose
sudo apt install go-jose=<VERSION_BEFORE_3.0.0>
sudo apt-mark hold go-jose
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list go-jose
sudo dnf downgrade go-jose-<VERSION_BEFORE_3.0.0>
sudo dnf versionlock add go-jose
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
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.