SQL injection in ext-pgsql via E'...' backslash breakout

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-17543
StatePUBLISHED
Assignerphp
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-30 12:17:27 UTC
Updated2026-08-05 19:40:35 UTC
DescriptionImproper escaping of backslashes in attacker-provided parameters would allow for trivial SQL injection in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.

Risk And Classification

Primary CVSS: v4.0 8.1 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:X/U:X

EPSS: 0.003860000 probability, percentile 0.313480000 (date 2026-08-03)

Problem Types: CWE-89 | CWE-89 CWE-89 Improper neutralization of special elements used in an SQL command ('SQL injection')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/C...
4.0CNACVSS8.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/A...
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Php Php All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA PHP Group PHP affected 8.2.* 8.2.33 semver Not specified
CNA PHP Group PHP affected 8.3.* 8.3.33 semver Not specified
CNA PHP Group PHP affected 8.4.* 8.4.24 semver Not specified
CNA PHP Group PHP affected 8.5.* 8.5.9 semver Not specified

References

ReferenceSourceLinkTags
github.com/php/php-src/security/advisories/GHSA-7qpv-r5mr-78m4 [email protected] github.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: ExPatch-LLC (en)

CNA: Alexandre Daubois - The PHP Foundation (en)

CNA: Ilija Tovilo - The PHP Foundation (en)

CNA: Matteo Beccati (en)

CNA: Jakub Zelenka - The PHP Foundation (en)

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