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Vulnerabilities

Security research · CVE-2026-45342

LinkAce is a self-hosted archive to collect website links.

Published May 28, 2026 · catalog updated Jul 21, 2026 · LinkAce is a self-hosted

Check if you run it

No confirmed exploitation is on record for CVE-2026-45342. EPSS is 0.38%. Act only if a listed version of LinkAce is a self-hosted is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (LinkAce is a self-hosted).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Advisory link
Affected products
See sources for product scope

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains an Insecure Direct Object Reference vulnerability in the authorization policy layer that allows any authenticated user to modify resources owned by other users. The affected resource types are links, lists, tags, and notes. Both the web UI and the REST API are vulnerable. The root cause is in the update() methods of all four model policies: LinkPolicy, LinkListPolicy, TagPolicy, and NotePolicy. Each delegates to an access-check method (e.g., userCanAccessLink()) that returns true for any resource with non-private visibility, regardless of who owns it. This means any registered user can edit any public or internal resource across the entire instance. The delete() methods in the same policy files correctly require ownership via $link->user->is($user), which confirms that update was intended to be owner-only. The same flaw exists in the API layer through AuthorizesUserApiActions::userCanUpdateModel(), which mirrors the broken visibility-only check instead of the ownership check used by userCanDeleteModel(). Bulk edit operations via BulkEditController are also affected. This vulnerability is fixed in 2.5.6.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-45342

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-45342. EPSS is 0.38%. Act only if a listed version of LinkAce is a self-hosted is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 28, 2026 · NIST NVD

    Detected

    LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains an Insecure Direct Object Reference vulnerability in the authorization policy layer that allows any authenticated user to modify resources owned by other users. The affected resource types are links, lists, tags, and notes. Both the web UI and the REST API are vulnerable. The root cause is in the update() m

  2. Jul 21, 2026 · NIST NVD

    Updated

    LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains an Insecure Direct Object Reference vulnerability in the authorization policy layer that allows any authenticated user to modify resources owned by other users. The affected resource types are links, lists, tags, and notes. Both the web UI and the REST API are vulnerable. The root cause is in the update() m

Sources

  • CVE.orgVulnerability recordCVE-2026-45342

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-45342

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-45342

    LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains an Insecure Direct Object Reference vulnerability in the authorization policy layer that allows any authenticated user to modify resources owned by other users. The affected resource types

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.