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Vulnerabilities

Vulnerability · CVE-2026-15580

vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse.

Published Aug 21, 2026 · catalog updated Oct 15, 2026 · vault token disclosure via

Check if you run it

No confirmed exploitation is on record for CVE-2026-15580. EPSS is 0.19%. Act only if a listed version of vault token disclosure via is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (vault token disclosure via).
  • 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
Medium6.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
See sources for product scope

vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse. This issue affects the PassPortal browser extension: before 3.49.6.

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

How to fix CVE-2026-15580

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-2026-15580. EPSS is 0.19%. Act only if a listed version of vault token disclosure via 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-1385. EPSS 0.19%. 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.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 21, 2026 · NIST NVD

    Detected

    vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse. This issue affects the PassPortal browser extension: before 3.49.6.

  2. Oct 15, 2026 · NIST NVD

    Updated

    vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse. This issue affects the PassPortal browser extension: before 3.49.6.

Sources

  • CVE.orgVulnerability recordCVE-2026-15580

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-15580

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-15580

    vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse. This issue affects the PassPortal browser extension: before 3.49.6.

    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.