Medium severity · published Jun 30, 2026
CVE-2026-13455
PostgreSQL Anonymizer: Unrestricted function can leak the secret salt
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to repeatedly call the anon.hash() function and collects (seed, hash_output) pairs to perform an offline brute-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
PostgreSQL Anonymizer · DALIBO
1 before 3.1.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13455
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13455
Vendor Advisory
https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649
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