Security readout for executives and security teams
Plain-English summary
PostgreSQL 18.0 and 18.1 can be crashed or potentially altered through a heap buffer overflow in the pg_trgm extension. The public record says impacts are not fully ruled out, including possible privilege escalation. Treat exposed PostgreSQL 18 systems as high priority, especially where untrusted users can run database queries.
Executive priority
High. Prioritize remediation for PostgreSQL 18.0 and 18.1 systems because the flaw affects server memory and may enable denial of service or worse. Systems with external access, multi-tenant users, or search features backed by pg_trgm should be handled first.
Technical view
The issue is a heap buffer overflow in PostgreSQL pg_trgm triggered by a crafted input string. The attacker has limited control over bytes written to server memory. Published impact is uncertain, but integrity and availability risk are documented, with privilege escalation not ruled out. Affected versions listed are PostgreSQL 18.0 and 18.1.
Likely exposure
Exposure is most likely on PostgreSQL 18.0 or 18.1 deployments with pg_trgm installed or available and users able to submit crafted database input. Internet-facing database services, shared databases, and applications passing user-controlled text into trigram search deserve priority review.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. It describes crafted input from a database user and unknown final impact. Do not assume exploitation in the wild, but the low-complexity network vector and potential server-memory corruption justify urgent handling.
Researcher notes
Evidence is incomplete on exploitability and final impact. The record states limited attacker control over written byte patterns and says privilege escalation has not been ruled out. Avoid overstating exploitation. Focus validation on version, pg_trgm presence, reachable query surfaces, package advisory status, and crash indicators.
Mitigation direction
- Inventory PostgreSQL 18.0 and 18.1 instances and extension usage.
- Check PostgreSQL and distributor advisories for fixed packages.
- Apply vendor-provided PostgreSQL or platform updates after testing.
- Restrict database access to trusted networks and accounts.
- Limit untrusted query paths using pg_trgm-backed search where practical.
Validation and detection
- Confirm exact PostgreSQL version on every production and staging instance.
- Identify databases where the pg_trgm extension is installed.
- Review application paths that pass user-controlled text to trigram search.
- Check vendor package advisories for installed package status.
- Monitor PostgreSQL logs for crashes or unusual trigram-search errors.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-122: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-2007 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H3.94.2PostgreSQLCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H3.94.2redhat-SADPVulnerability scoring details
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-02-12T14:01:16.168Z: Reported to Red Hat.
- 2026-02-12T13:00:11.127Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.postgresql.org/support/security/CVE-2026-2007/CVE reference, PostgreSQL
- https://access.redhat.com/security/cve/CVE-2026-2007CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2439320CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2007.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:19009CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8756CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.