Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
CVE-2026-2006
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-02-12. NVD baseline CVSS 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 61.5%
- KEV
- Not listed
Published
February 12, 2026
Last Modified
July 15, 2026
Advisory Details (1)
Auto-updated Jun 7, 2026PostgreSQL: CVE-2026-2006: PostgreSQL missing validation of multibyte character length executes arbitrary code
https://www.postgresql.org/support/security/CVE-2026-2006/Vendor Advisories for CVE-2026-2006(20)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:19010Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql16 security update
- RHSA-2026:19009Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql18 security update
- RHSA-2026:8756Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:4943Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
- RHSA-2026:4548Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql:15 security update
- RHSA-2026:4547Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql:16 security update
- RHSA-2026:4544Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql:16 security update
- RHSA-2026:4546Red Hat Product SecurityHigh
Red Hat Security Advisory: postgresql:15 security update
- +12 more
Patch Availability(30)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(11)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2026:4024IMPORTANT2026-02-12
RHSA-2026:4024 — Important
- Red HatRHSA-2026:4064IMPORTANT2026-02-12
RHSA-2026:4064 — Important
- Red HatRHSA-2026:4074IMPORTANT2026-02-12
RHSA-2026:4074 — Important
- Red HatRHSA-2026:4075IMPORTANT2026-02-12
RHSA-2026:4075 — Important
- Red HatRHSA-2026:4475IMPORTANT2026-02-12
RHSA-2026:4475 — Important
- Red HatRHSA-2026:4504IMPORTANT2026-02-12
RHSA-2026:4504 — Important
- Red HatRHSA-2026:4505IMPORTANT2026-02-12
RHSA-2026:4505 — Important
- Red HatRHSA-2026:4506IMPORTANT2026-02-12
RHSA-2026:4506 — Important
- Red HatRHSA-2026:4509IMPORTANT2026-02-12
RHSA-2026:4509 — Important
- Red HatRHSA-2026:4516IMPORTANT2026-02-12
RHSA-2026:4516 — Important
- Red HatRHSA-2026:4518IMPORTANT2026-02-12
RHSA-2026:4518 — Important
Data Freshness Timeline
(refreshed 14× in last 7d / 48× 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.
Showing the most recent 100 of 105 total refreshes for this CVE.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-21 15:24 UTCEPSS rescore
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- 2026-07-17 14:59 UTCOSV refresh
- 2026-07-16 17:03 UTCEPSS rescore
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- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-06-29 14:06 UTCEPSS rescore
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- 2026-06-29 13:23 UTCOSV refresh
- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 03:56 UTCVendor advisory
- 2026-06-12 03:56 UTCGHSA enrichment
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 22:11 UTCVendor advisory
- 2026-06-10 22:11 UTCGHSA enrichment
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 02:33 UTCVendor advisory
- 2026-06-10 02:33 UTCGHSA enrichment
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 07:05 UTCVendor advisory
- 2026-06-08 07:05 UTCGHSA enrichment
- 2026-06-07 19:23 UTCVendor advisory
- 2026-06-07 19:23 UTCGHSA enrichment
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 15:25 UTCEPSS rescore
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- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
Frequently asked(5)
What is CVE-2026-2006?
When was CVE-2026-2006 disclosed?
Is CVE-2026-2006 actively exploited?
What is the CVSS score of CVE-2026-2006?
How do I remediate CVE-2026-2006?
Dependency Blast Radius
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