Is CVE-2026-46634 actively exploited?

No active exploitation of CVE-2026-46634 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-46634 be exploited remotely?

Yes. CVE-2026-46634 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-46634?

CVE-2026-46634 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-46634

CWE-693Published: July 14, 2026· Updated: Jul 16, 2026

9.8

CVSS v3.1

EPSS:0.42%probability of exploitation in 30 daysPercentile:34.0th

Official Description

Twig is a template language for PHP. From 3.9.0 until 3.26.0, template_from_string() compiles an inner template under a synthesized __string_template__<hash> name that can fall outside a SourcePolicyInterface sandbox decision, allowing a sandboxed template that can call template_from_string and include to render an inner template without security policy enforcement. This issue is fixed in version 3.26.0.

NVD Source

Risk Analysis

This critical vulnerability in Twig versions 3.9.0 through 3.26.0, with a CVSS score of 9.8, allows sandboxed templates to bypass security policy enforcement. This occurs when template_from_string() compiles inner templates outside the SourcePolicyInterface sandbox.

No public exploit is currently known for this vulnerability. The flaw is remotely exploitable (AV:N) and has low attack complexity (AC:L), making it a significant concern.

Recommended Action

Upgrade Twig to version 3.26.0 or later. Ensure that all template compilation, especially from strings, adheres to defined security policies and sandboxing rules.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-46634 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.