How severe is CVE-2026-24686?

CVE-2026-24686 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-24686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24686?

CVE-2026-24686 affects Theupdateframework Go-tuf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24686?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-24686 have an EU (EUVD) identifier?

Yes. CVE-2026-24686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4837.

When was CVE-2026-24686 published?

CVE-2026-24686 was published on 2026-01-27 and last updated on 2026-06-17.

CVE-2026-24686

CVE-2026-24686 is a medium-severity vulnerability in Theupdateframework Go-tuf with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4837
Weakness: CWE-22
Affected product: Theupdateframework Go-tuf
Published: 2026-01-27
Last modified: 2026-06-17

Description

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 create directories and write the root metadata file outside the intended `LocalMetadataDir` cache base, within the running process's filesystem permissions. Version 2.4.1 contains a patch.

Frequently asked questions

What is CVE-2026-24686?: 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 create directories and write the root metadata file outside the intended `LocalMetadataDir` cache base, within the running process's filesystem permissions. Version 2.4.1 contains a patch.
How severe is CVE-2026-24686?: CVE-2026-24686 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-24686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24686?: CVE-2026-24686 affects Theupdateframework Go-tuf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24686 have an EU (EUVD) identifier?: Yes. CVE-2026-24686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4837.
When was CVE-2026-24686 published?: CVE-2026-24686 was published on 2026-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:theupdateframework:go-tuf:*:*:*:*:*:*:*:*

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