ETK-2026-3128Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
imgproxy versions before 4.0.17 can write beyond a heap buffer while processing malformed ICO images. An attacker who can cause imgproxy to process a crafted ICO may crash an image-processing worker, causing denial of service.
mitigation
Upgrade github.com/imgproxy/imgproxy/v3 to version 4.0.17 or later. Until upgraded, prevent processing of untrusted ICO files.
fixed in 4.0.17
outcome
Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-30 22:56Zghsa: trigger signal, started the run
- 2026-10-30 22:56Z
this entry in the feed
GET /api/v1/feed/ETK-2026-3128
{ "etk_id": "ETK-2026-3128", "cve_id": null, "display_id": "ETK-2026-3128", "ghsa_id": "GHSA-494m-4556-wf5p", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Out-of-bounds write in imgproxy ICO loader", "summary": "imgproxy versions before 4.0.17 can write beyond a heap buffer while processing malformed ICO images. An attacker who can cause imgproxy to process a crafted ICO may crash an image-processing worker, causing denial of service.", "mitigation": "Upgrade github.com/imgproxy/imgproxy/v3 to version 4.0.17 or later. Until upgraded, prevent processing of untrusted ICO files.", "vendor": "go", "product": "go:github.com/imgproxy/imgproxy/v3", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 3.3.0, < 4.0.17" ], "ecosystem": "go", "fixed_versions": [ "4.0.17" ], "package_name": "github.com/imgproxy/imgproxy/v3", "purl": "pkg:golang/github.com/imgproxy/imgproxy/v3" } ], "cwes": null, "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 19.15089031666667, "t0_at": null, "signals": { "public_poc": { "at": "2026-10-30T22:56:14+00:00", "days": -0.13069007890046297, "is_lower_bound": true, "measured_at": "2026-10-31T02:04:25.653468+00:00", "url": "https://github.com/advisories/GHSA-494m-4556-wf5p" }, "trigger_signal": { "at": "2026-10-30T22:56:14+00:00", "days": -0.13069007890046297, "is_lower_bound": true, "measured_at": "2026-10-31T02:04:25.653468+00:00", "url": "https://github.com/advisories/GHSA-494m-4556-wf5p" } } }
published 2026-10-30 23:40Z
last change 2026-10-31 02:00Z
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