Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HSummary
CVE-2026-2007 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Postgresql Postgresql. Its CVSS base score is 8.2 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 39th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-2007 is a heap buffer overflow vulnerability (CWE-122) in the pg_trgm extension of PostgreSQL. It affects versions 18.1 and 18.0. The flaw enables a database user to trigger unknown impacts by supplying a crafted input string, with the attacker having limited control over the byte patterns written into the heap overflow.
A database user can exploit this vulnerability remotely over the network with low attack complexity, no user interaction, and no privileges required (CVSS:3.1 score of 8.2; AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H). Successful exploitation may result in high availability impact and low integrity impact, and while exact outcomes remain unknown, privilege escalation has not been ruled out due to the nature of the overflow.
The official PostgreSQL security advisory at https://www.postgresql.org/support/security/CVE-2026-2007/ details available patches and mitigation guidance for addressing this issue.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-7042
Vulnerability Data
Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of…
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attacks that lead to privilege escalation. PostgreSQL 18.1 and 18.0 are affected.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation (including fuzzing and memory-error detectors) can discover heap overflows after they have been coded.
Input validation enforces bounds checking on data written to heap buffers, directly stopping the overflow condition from being introduced.
Security engineering principles require use of memory-safe constructs and bounds-checked allocation routines that avoid introducing heap overflows.
Memory-protection mechanisms limit the ability of a heap overflow to execute attacker-controlled code or corrupt adjacent structures.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure-development practices directly require bounds checking and safe memory handling that prevent heap overflows.
Vulnerability scanning and recording can discover heap-overflow flaws but does not prevent their introduction in code.
Timely patching removes known heap-overflow instances after they exist.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.
Security testing in development and acceptance can detect heap overflows before release.
Secure development lifecycle mandates practices that reduce the likelihood of introducing heap overflows.
Application security requirements can specify bounds-checking and safe memory APIs that mitigate heap overflows.
Secure architecture and engineering principles include memory-safety and input-validation controls that address heap overflows.
Change management ensures controlled deployment of fixes for discovered heap-overflow vulnerabilities.