sysPass 3.2.11 Missing Authorization via PublicLinkController Account Decryption

published 2026-07-24 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-48716

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

sysPass through version 3.2.11 contains a missing authorization vulnerability that allows authenticated users with the PUBLICLINK_CREATE profile flag to trigger unauthorized decryption and persistent storage of any vault account's password by exploiting the absence of AccountAcl checks in the public link creation flow. Attackers can invoke the saveCreateFromAccountAction endpoint to cause AccountService::getDataForLink to load arbitrary target accounts without AccountFilterUser restrictions, decrypt credentials using the session master key, and serialize cleartext passwords into Vault storage on the PublicLink database row, enabling subsequent unauthenticated retrieval if the generated link hash is recovered.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-24)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Caycon/cve-advisories/blob/main/2026/sysPass/CVE-2026-65710.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

nuxsmin sysPass

Classification

Weakness

CWE-639 Authorization Bypass Through User-Controlled Key

References

github.com /Caycon/cve-advisories/blob/main/2026/sysPass/CVE-2026-65710.md
technical-description, exploit
vulncheck.com /advisories/syspass-missing-authorization-via-publiclinkcontroller-account-decryption
third-party-advisory

Sources

CVE List CVE-2026-65710
NVD CVE-2026-65710

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary