CVE-2025-12817VulnerabilityPublished 13 Jan 2026Updated 27 Jun 2026

Red Hat Security Advisory: postgresql security update

Affects Red Hat postgresqlSource GCVE Database

Mentioned vulnerabilities

CVE-2025-12818

Authoritative record:CVE-2025-12817· Low 3.1

Not known to be exploited · CVSS 3.1 Low : upgrade the Red Hat redhat/postgresql package to 9.8 when convenient.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score

3.1Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 9.8

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

Disclosed: evidence found.
CVE published 13 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade the Red Hat redhat/postgresql package to 9.8.

Affected software

Product	Affected	Fixed in
Red Hatredhat/postgresql`pkg:rpm/redhat/postgresql`Other threats	Affected =9 <9.8	Fixed in 9.8

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official security update for PostgreSQL on Red Hat Enterprise Linux 9 that addresses these vulnerabilities. Users should apply the updated packages as described in Red Hat advisory RHSA-2026:0491 and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor advisory.

Description

PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: CREATE STATISTICS does not check for schema CREATE privilege (CVE-2025-12817) * postgresql: libpq undersizes allocations, via integer wraparound (CVE-2025-12818) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Impact

The first vulnerability (CVE-2025-12817) could allow users without proper schema CREATE privileges to execute CREATE STATISTICS, potentially leading to unauthorized schema changes or information disclosure. The second vulnerability (CVE-2025-12818) involves libpq undersizing allocations due to integer wraparound, which may cause memory corruption or instability in client applications using libpq. Both issues could affect the security and stability of PostgreSQL database deployments on affected Red Hat Enterprise Linux 9 systems.

Summary

Red Hat Product Security released an advisory (RHSA-2026:0491) for PostgreSQL on Red Hat Enterprise Linux 9 addressing two vulnerabilities: CVE-2025-12817, where the CREATE STATISTICS command does not verify schema CREATE privileges, potentially allowing unauthorized schema modifications; and CVE-2025-12818, where libpq undersizes memory allocations due to integer wraparound, which could lead to memory corruption or related issues. The advisory provides updated PostgreSQL packages to remediate these vulnerabilities. No CVSS scores are provided in the advisory, but the impact is rated moderate by Red Hat. The advisory covers multiple RHEL 9 variants and architectures.

CWE-862Missing Authorization (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #4OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
Attack patterns
Exploitation of Thunderbolt Protection Flaws (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-190Integer Overflow or Wraparound (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V5.4.3 (opens in a new tab)
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
Attack patterns
Forced Integer Overflow (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Jun 2026, 22:02 UTC

WeaknessesCWE-862, CWE-190

Technical details

References

Community reviews

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