CVE-2026-123615 json
imgproxy before 4.0.17 Out-of-Bounds Write in ICO Loader
published 2026-10-30 9 d ago modified 2026-11-08 16 h ago also EUVD-2026-119374 , GHSA-494m-4556-wf5p , GO-2026-6895
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
imgproxy 3.3.0 before 4.0.17 contains an out-of-bounds heap read and write in the ICO loader's BMP header reconstruction (vips_foreign_load_ico_header in vips/icoload.c) when an ICO entry declares a tiny data size, causing unvalidated header fields to be read and written past the allocated buffer. Unauthenticated remote attackers can supply a crafted ICO image to corrupt adjacent heap chunk metadata, triggering a glibc abort that crashes the worker.
Patch / fix
- go github.com/imgproxy/imgproxy/v3 4.0.17
- go github.com/imgproxy/imgproxy/v4 4.0.17
- imgproxy imgproxy 4.0.17
- github.com/imgproxy/imgproxy@39fd9e8 commit
- github.com/imgproxy/imgproxy#1726 pull request
- github.com/imgproxy/imgproxy/releases/tag/v4.0.17 release
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/imgproxy/imgproxy/v3 | >=3.3.0, <4.0.17 >=3.3.0 |
4.0.17 |
| go | github.com/imgproxy/imgproxy | all versions |
no fix listed |
| go | github.com/imgproxy/imgproxy/v2 | all versions |
no fix listed |
| go | github.com/imgproxy/imgproxy/v4 | <4.0.17 |
4.0.17 |
Affected products
- imgproxy imgproxy
Classification
References
-
github.com
/imgproxy/imgproxy/pull/1726
web, patch
-
github.com
/imgproxy/imgproxy/commit/39fd9e844a8a46084161502e993d5a3c16ccf28d
web, patch
-
github.com
/imgproxy/imgproxy/security/advisories/GHSA-494m-4556-wf5p
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/imgproxy-before-4.0.17-out-of-bounds-write-in-ico-loader
third-party-advisory
-
github.com
/imgproxy/imgproxy
package
-
github.com
/imgproxy/imgproxy/releases/tag/v4.0.17
web
Sources
- CVE List CVE-2026-123615
- GitHub Advisory GHSA-494m-4556-wf5p
- NVD CVE-2026-123615
- OSV GO-2026-6895
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