CVE-2026-58587

unknown

Published 2026-07-01 · Modified 2026-07-01

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

The Canvas AI submodule allows you to upload image files via a custom API to use within the AI web chat. These file uploads are insufficiently validated before being written to Drupal's temporary directory. In some cases, this may lead to cross-site scripting (XSS).

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Packagist:https://packages.drupal.org/8	drupal/canvas	`<1.4.2\|\|>=1.5.0,<1.5.2\|\|>=1.6.0,<1.6.1\|\|>=1.7.0,<1.7.1`	`1.4.2`

References

https://www.drupal.org/sa-contrib-2026-065

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.