CVE-2026-24686: go-tuf is a Go implementation of The Update Framework (TUF)

Routine

MEDIUM 4.7UPGRADE

CVE-2026-24686 is a medium-severity flaw (CVSS 4.7) affecting go-tuf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

go-tuf is a Go implementation of The Update Framework (TUF). go-tuf's TAP 4 Multirepo Client uses the map file repository name string (`repoName`) as a filesystem path component when selecting the local metadata cache directory. Starting in version 2.0.0 and prior to version 2.4.1, if an application accepts a map file from an untrusted source, an attacker can supply a `repoName` containing traversal (e.g., `../escaped-repo`) and cause go-tuf to c

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-01-27
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2026-01-27 01:16 UTCPublished CVE record published
2026-06-17 10:23 UTCUpdated Record last modified

theupdateframework go-tuf UPGRADE

Affected: >= 2.0.0 and < 2.4.1

Fixed in: 2.4.1

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy go-tuf || rpm -q go-tuf || go-tuf --version

2. UPGRADE to 2.4.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade go-tuf

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade go-tuf

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 2.0.0 (Debian / Ubuntu)

apt-cache madison go-tuf sudo apt install go-tuf=<VERSION_BEFORE_2.0.0> sudo apt-mark hold go-tuf

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list go-tuf sudo dnf downgrade go-tuf-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add go-tuf

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.

Quick answers

How do I fix CVE-2026-24686?

go-tuf: upgrade to 2.4.1. Exact commands for each OS are on this page.

Is CVE-2026-24686 being exploited?

CVE-2026-24686 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-2026-24686 affect?

CVE-2026-24686 affects go-tuf. Severity is medium (CVSS 4.7). go-tuf is a Go implementation of The Update Framework (TUF). go-tuf's TAP 4 Multirepo Client uses the map file repository name string (`repoName`) as a filesystem path component when selecting the local metadata cache directory. Starting in

How urgent is CVE-2026-24686?

Priority 25/100. Public exploit reference

Related CVEs

CVE-2026-23992 MEDIUM 5.9 UPGRADE go-tuf is a Go implementation of The Update Framework (TUF)
CVE-2026-23991 MEDIUM 5.9 UPGRADE go-tuf is a Go implementation of The Update Framework (TUF)

References

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