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CVE-2026-13455— PostgreSQL Anonymizer: Unrestricted function can leak the secret salt

Quick assessment

Affected
DALIBO PostgreSQL Anonymizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DALIBO PostgreSQL Anonymizer是法国DALIBO公司开源的一个用于屏蔽或替换 PostgreSQL 数据库中的个人身份信息 (PII) 或商业敏感数据的扩展软件。 DALIBO PostgreSQL Anonymizer 3.1.2之前版本存在加密问题漏洞，该漏洞源于未授权用户反复调用anon.hash()函数收集（seed, hash_output）对进行离线暴力破解攻击，可能导致推断盐值。

CVSS 4.3 · Medium EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1595 · Active Scanning

Affected Version Matrix 1

VendorProduct Version RangeStatus
DALIBO PostgreSQL Anonymizer 1< 3.1.2 affected
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I. Basic Information for CVE-2026-13455

Vulnerability Information
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Vulnerability Title
PostgreSQL Anonymizer: Unrestricted function can leak the secret salt
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
可逆的单向哈希
Source: CVE Program / CVE List V5
Vulnerability Title
DALIBO PostgreSQL Anonymizer 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DALIBO PostgreSQL Anonymizer是法国DALIBO公司开源的一个用于屏蔽或替换 PostgreSQL 数据库中的个人身份信息 (PII) 或商业敏感数据的扩展软件。 DALIBO PostgreSQL Anonymizer 3.1.2之前版本存在加密问题漏洞，该漏洞源于未授权用户反复调用anon.hash()函数收集（seed, hash_output）对进行离线暴力破解攻击，可能导致推断盐值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
DALIBO PostgreSQL Anonymizer 1 ~ 3.1.2 -

II. Public POCs for CVE-2026-13455

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III. Intelligence Information for CVE-2026-13455

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Vendor Advisories for CVE-2026-13455 (1)

IV. Related Vulnerabilities

Same product: PostgreSQL Anonymizer
Same vendor: DALIBO
Same weakness: CWE-328

V. Comments for CVE-2026-13455

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