CVE-2026-13455

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-06-30. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
4.3
EG Score
4.3(high)
EPSS
2.1%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 6, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

anon.hash() is missing the RESTRICTED label, so a masked role can use it as a hashing oracle (#649) · Issues · dalibo / PostgreSQL Anonymizer · GitLab

https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649

Vendor Advisories for CVE-2026-13455(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-16 17:34 UTCGHSA enrichment
  7. 2026-07-16 17:02 UTCEPSS rescore
  8. 2026-07-15 18:14 UTCGHSA enrichment
  9. 2026-07-15 16:57 UTCEPSS rescore
  10. 2026-07-15 02:00 UTCEPSS rescore
  11. 2026-07-14 19:39 UTCGHSA enrichment
  12. 2026-07-13 22:30 UTCEPSS rescore
  13. 2026-07-13 21:02 UTCGHSA enrichment
  14. 2026-07-13 06:12 UTCEPSS rescore
  15. 2026-07-12 22:27 UTCGHSA enrichment
  16. 2026-07-11 23:52 UTCGHSA enrichment
  17. 2026-07-11 08:27 UTCEPSS rescore
  18. 2026-07-11 01:17 UTCGHSA enrichment
  19. 2026-07-10 02:41 UTCGHSA enrichment
  20. 2026-07-09 19:10 UTCEPSS rescore
  21. 2026-07-09 03:58 UTCGHSA enrichment
  22. 2026-07-08 15:15 UTCEPSS rescore
  23. 2026-07-08 15:15 UTCEPSS rescore
  24. 2026-07-08 05:24 UTCGHSA enrichment
  25. 2026-07-07 13:46 UTCEPSS rescore
Show 14 more
  1. 2026-07-07 06:43 UTCGHSA enrichment
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 08:06 UTCGHSA enrichment
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 09:29 UTCGHSA enrichment
  6. 2026-07-04 10:54 UTCGHSA enrichment
  7. 2026-07-04 06:31 UTCEPSS rescore
  8. 2026-07-03 12:19 UTCGHSA enrichment
  9. 2026-07-02 13:43 UTCGHSA enrichment
  10. 2026-07-01 15:09 UTCGHSA enrichment
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-07-01 15:06 UTCEPSS rescore
  13. 2026-06-30 16:33 UTCEG score recompute
  14. 2026-06-30 16:32 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-13455?
CVE-2026-13455 is a medium vulnerability published on June 30, 2026. 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…
When was CVE-2026-13455 disclosed?
CVE-2026-13455 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13455 actively exploited?
CVE-2026-13455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13455?
CVE-2026-13455 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-13455?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13455, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-13455

Explore →

Is Your Infrastructure Affected by CVE-2026-13455?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs