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CVE-2026-112782— Grav before 1.7.53.5 and 2.2.2 Image Pixel Limit Bypass Denial of Service

Quick assessment

Affected
getgrav grav
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grav 1.7.53（早于 1.7.53.5）以及 2.0.0-rc.8（早于 2.2.2）版本中存在资源耗尽漏洞。当启用 配置时，匿名访客可绕过 限制。攻击者可通过发送单维度或百分比形式的 、 或链式图像操作，迫使 GD 库分配数 GB 的画布，从而耗尽服务器内存并导致网站服务中断。

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

VendorProduct Version RangeStatus
getgrav grav 2.0.0-rc.8< 2.2.2 affected
2.2.2 unaffected
1.7.53< 1.7.53.5 affected
1.7.53.5 unaffected
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I. Basic Information for CVE-2026-112782

Vulnerability Information
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Vulnerability Title
Grav before 1.7.53.5 and 2.2.2 Image Pixel Limit Bypass Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Grav 1.7.53 before 1.7.53.5 and 2.0.0-rc.8 before 2.2.2 contains a resource exhaustion vulnerability that allows anonymous visitors to bypass the system.images.max_pixels limit when system.images.url_actions is enabled. Attackers can send single-dimension or percentage forceResize, zoomCrop, or chained image actions to make GD allocate multi-gigabyte canvases, exhausting server memory and taking the site down.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
getgrav grav 2.0.0-rc.8 ~ 2.2.2 -
getgrav grav 1.7.53 ~ 1.7.53.5 -

II. Public POCs for CVE-2026-112782

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III. Intelligence Information for CVE-2026-112782

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Other References for CVE-2026-112782 (2)

Same Patch Batch · getgrav · 2026-10-19 · 4 CVEs total

CVE-2026-112779 9.8 CRITICAL Grav API Plugin before 1.0.42 Cache Exhaustion and Page Permission Bypass
CVE-2026-112780 8.8 HIGH Grav 2.0.15 before 2.2.2 Arbitrary Static Method Call via Flex Form replace-name@
CVE-2026-112781 6.5 MEDIUM Grav 2.0.0 before 2.2.2 Information Disclosure via Form config-*@ Directives

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-400

V. Comments for CVE-2026-112782

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