[UPDATE] [high] PHP: Multiple Vulnerabilities

highpublic exploitCVE-2026-17543 CVE-2026-17544 CVE-2026-7260

An attacker can exploit multiple vulnerabilities in PHP to conduct SQL injection, execute arbitrary code, manipulate data, or trigger a denial of service condition.

CSIRTS triage

vendor: PHP product: PHP SQL injection Remote code executionOtherDenial of service

What: Multiple vulnerabilities in PHP enable SQL injection, arbitrary code execution, data manipulation, and denial of service.
Who is affected: All PHP installations running vulnerable versions.
Urgency: High severity with code execution capability demands immediate remediation.
Action: Update to the latest patched PHP version provided by the PHP project.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-08-07
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2598

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-175430.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-175440.52% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-72600.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-17543	coverage & exploitation status	NVD · CVE.org
CVE-2026-17544	coverage & exploitation status	NVD · CVE.org
CVE-2026-7260	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownPHP Multiple Vulnerabilitieshkcert
unknownDSA-6406-1 php8.4 - security updatedebian
unknownMultiple vulnerabilities in PHP (July 31, 2026)cert-fr-avis
mediumCVE-2026-7260: Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C st…nvd
criticalCVE-2026-17544: Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap …nvd
criticalCVE-2026-17543: Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL i…nvd

Recent advisories for PHP

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-71488: league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 0.6.0 u…nvd · 2026-08-06
mediumCVE-2026-71478: league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 1.5.0 u…nvd · 2026-08-06
unknownCVE-2026-67434: PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standard…nvd · 2026-08-06
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criticalCVE-2026-65581: Unauthenticated PHP Object Injection in AI ANN <= 1.29.0 versions.nvd · 2026-08-06
criticalCVE-2026-65579: Unauthenticated PHP Object Injection in Agricola <= 1.21.0 versions.nvd · 2026-08-06