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    CVE-2026-13455

    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

    Published:Jun 30, 2026
    Last Modified:Jun 30, 2026
    EPS:Jun 30, 2026
    EPSS Score:
    CVSS Score:4.3

    Affected Products

    Vendor
    Dalibo
    Product
    Postgresql Anonymizer

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-328 Use of Weak Hash

    Related CVEs

    CVE-2026-83534 (CVSS 6.4) — PostgreSQL Anonymizer contains a vulnerability in the anon.anonymize_database_parallel() function that allows …
    CVE-2026-19634 (CVSS 6.4) — PostgreSQL Anonymizer contains a SQL injection vulnerability in two import functions. A user can create a mali…
    CVE-2026-19633 (CVSS 8.8) — PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to execute arbitrary code…
    CVE-2026-11945 (CVSS 6.4) — PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a J…
    CVE-2026-9617 (CVSS 6.8) — PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a t…
    CVE-2026-2361 (CVSS 8) — PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a t…
    CVE-2026-2360 (CVSS 8) — PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a c…
    CVE-2025-5690 (CVSS 6.5) — PostgreSQL Anonymizer v2.0 and v2.1 contain a vulnerability that allows a masked user to bypass the masking ru…
    CVE-2024-2339 (CVSS 8) — PostgreSQL Anonymizer v1.2 contains a vulnerability that allows a user who owns a table to elevate to superus…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High