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CVE-2026-126570VulnerabilityPublished

Padloc 4.0.0 before 4.3.1 contains a prototype pollution vulnerability that allows SCIM token holders to modify

Source GCVE Database

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Authoritative record:CVE-2026-126570· High 7.0

Not known to be exploited · CVSS 7.0 High : upgrade to 4.3.1 soon.

Data as of 11 Nov 2026, 04:36 UTC

CVSS 4.0 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.07.0
CNA (VulnCheck)CVSS 3.17.6
Patch
Available – fixed in 4.3.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade padloc to 4.3.1.

Affected software

ProductAffectedFixed in
padlocpadlocAffected
  • >=4.0.0 <4.3.1
Fixed in
  • 4.3.1
GitHubpadlocpkg:github/padlocOther threatsAffected
  • >=4.0.0 <4.3.1
Fixed in
  • 4.3.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Padloc to version 4.3.1 or later, where this prototype pollution vulnerability is fixed. Since the vulnerability affects versions before 4.3.1, applying this official fix is the recommended remediation. No alternative mitigations or workarounds are indicated.

Description

Padloc versions 4.0.0 up to but not including 4.3.1 contain a prototype pollution vulnerability. This flaw allows SCIM token holders to modify the Object.prototype by sending specially crafted SCIM PATCH requests to the ScimServer._handleScimUsersPatch() function. By manipulating paths such as __proto__.x or constructor.prototype.x, attackers can pollute the shared server process, potentially disrupting requests for all organizations served by that process. The vulnerability has a high severity rating with a CVSS score of 7.6.

References

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