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CVE-2026-109619, described as a stale internal request-state vulnerability in PHP, is identified in the supplied source material as actively exploited and listed in CISA’s Known Exploited Vulnerabilities catalog. The notice says the issue may allow unauthenticated remote code execution and advises following vendor mitigations, but provides no affected-version details, exploitation evidence, or remediation deadlines.
CVE-2026-109619, a vulnerability described as a stale internal request-state flaw in PHP, is identified in the supplied notice as actively exploited and associated with the U.S. Cybersecurity and Infrastructure Security Agency’s Known Exploited Vulnerabilities catalog. The notice says the flaw may permit unauthenticated remote code execution, but does not specify affected PHP versions, technical conditions, or confirmed incidents.
The source describes the issue as stale internal request state within PHP, the software used to run server-side code on websites and other services. It characterizes the potential consequence as remote code execution without authentication. That description signals a potentially serious exposure: if the weakness can be reached in a vulnerable deployment, an attacker may be able to cause code to run on the affected system without first logging in. The supplied material does not provide technical details that would establish how or when this could occur.
The notice associates the CVE with CISA’s Known Exploited Vulnerabilities (KEV) catalog and labels exploitation active. The material provided for this report does not include a CISA entry, the date it was added, or a separate incident report. The active-exploitation status is therefore presented as the source’s report of the listing, not as independently verified evidence of particular attacks, affected organizations, or the scale of exploitation.
The supplied advisory recommends applying mitigations in accordance with vendor instructions and says to ensure “compliance with CI.” It does not identify a specific patch, configuration change, or version range. Administrators should consult current PHP vendor guidance and their own asset records before deciding which systems need action; the notice alone is not enough to determine whether a given installation is vulnerable.
Why PHP Operators Should Check Exposure
If the reported exploitation status is accurate, the combination of remote code execution and no authentication requirement makes this a priority for teams that operate affected PHP systems. Successful code execution can put the confidentiality, integrity, or availability of a server at risk. The actual consequences depend on the vulnerable component, deployment settings, privileges available to the PHP process, and whether an attacker can reach the relevant code path. Those details are not included in the supplied notice.
A KEV designation is used by CISA to flag vulnerabilities known to be exploited in the wild. For organizations that use the catalog to guide remediation, a listing can affect how security teams prioritize patching, monitoring, and exception reviews. It does not, by itself, establish that every PHP installation is affected or that every listed system has been attacked. Teams need vendor-specific version guidance to match the CVE to their environments and avoid treating the broad product name as a complete exposure assessment.
The immediate operational concern is to identify PHP services and determine whether they run an affected build, then apply the vendor’s stated mitigation where applicable. Because the supplied material gives no version range or workaround, operators should not infer that upgrading to an arbitrary release, disabling an unrelated feature, or changing a generic setting resolves the flaw. A documented remediation path and validation of the result are needed before declaring systems protected.
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What the Notice Establishes
The item supplied for this report names CVE-2026-109619, attributes the affected product to PHP Group PHP, and describes the vulnerability as involving stale internal request state. It also gives two key security characterizations: unauthenticated remote code execution as a possible impact, and active exploitation in connection with CISA KEV. These are the facts and claims available in the source material; it contains no linked technical advisory or supporting evidence.
PHP Group is associated with the PHP programming language, which is widely used in web applications and server environments. That broad use makes a PHP vulnerability potentially relevant to many operators, but it does not mean all sites or installations are affected. Vulnerability applicability can depend on the exact release, build, configuration, and code path. No affected or fixed versions are supplied here, so readers should treat the product-level description as a prompt to check authoritative vendor information rather than as a definitive inventory of exposed systems.
CISA’s KEV catalog is a U.S. government resource that records vulnerabilities it says have evidence of exploitation. The source’s KEV reference gives the report urgency, but the provided text does not reproduce CISA’s entry or its details. No due date, federal remediation requirement, exploit publication, or specific threat actor is cited. The report does not add any such claims.
““PHP contains a stale internal request-state vulnerability that allows for unauthenticated remote code execution.””
— The supplied vulnerability notice
Affected Releases and Attack Evidence
The available source does not state which PHP versions or configurations are affected, which releases contain a fix, or whether a mitigation is available for systems that cannot be updated. It gives no CVSS score, technical advisory, exploit description, or confirmation of the conditions needed to trigger the flaw. Administrators therefore cannot use this notice alone to determine whether a specific host is vulnerable.
Although the notice calls the issue actively exploited and associates it with CISA KEV, it does not identify victims, attack dates, observed indicators, or the number of incidents. The date and exact wording of the catalog entry are also absent. The scope and intensity of exploitation, and whether the report refers to a particular software component or deployment pattern within PHP, remain unclear.
The phrase “compliance with CI” is not explained in the source. It may refer to an internal or organizational requirement, but the notice does not define it. Readers should rely on the full vendor advisory and applicable organizational guidance rather than infer a technical instruction from that phrase.
Verify the Vendor Fix and KEV Entry
PHP operators should check the official vendor advisory and the current CISA KEV record for the CVE, including affected and fixed versions, recommended mitigation, and any applicable remediation timeline. They should compare those details with their deployed PHP versions and configurations, then prioritize systems that the vendor confirms are vulnerable. The provided notice does not state a deadline, so no specific due date can be reported here.
After applying an approved patch or mitigation, teams should verify the change on affected systems and follow their established security procedures for reviewing relevant logs and alerts. If a deployment cannot be updated immediately, operators should use only vendor-supported temporary measures and document any remaining exposure. No indicators of compromise or incident-response steps are included in the supplied material.
Further reporting can establish the affected release range, the technical basis for remote code execution, the date of the KEV listing, and whether attacks have been observed against particular deployments. Until those details are available from authoritative sources, the confirmed action is to investigate applicability and follow vendor instructions, not to assume that every PHP service is either vulnerable or protected.
Key Questions
What is CVE-2026-109619?
It is identified in the supplied notice as a stale internal request-state vulnerability in PHP. The notice says it may allow unauthenticated remote code execution, but does not provide a technical explanation or affected-version list.
Is the vulnerability being exploited?
The supplied source labels it actively exploited and associates it with CISA’s KEV catalog. The material does not include the catalog entry or details about specific attacks, victims, or their scale.
Which PHP versions are affected?
The source material does not name affected or fixed versions. Check the official PHP vendor advisory and CISA’s current listing before determining whether an installation is exposed.
What should administrators do now?
Inventory PHP deployments, compare their versions and configurations with official vendor guidance, and apply the vendor’s recommended patch or mitigation where applicable. The supplied notice does not identify a particular fix or workaround.
Does the notice confirm attacks on a specific organization?
No. It reports active exploitation but names no victim or incident and provides no attack indicators. The scope and details of exploitation remain unclear from the available material.
Source: kev
