CVE-2026-123616
📛 CVE Title
imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader
Description
imgproxy from 3.3.0 before 4.0.16 contains an unbounded memory allocation vulnerability in the ICO loader that fails to validate the data_size field. Attackers can supply a crafted 23-byte ICO file declaring a ~4GB data_size to trigger memory exhaustion and worker crashes without authentication.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulnCheck
- CVSS severity
- HIGH
- CVSS score
- 8.7 / 10
- CVSS vector
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- Effective score
- 8.7 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-789 - Reserved
- 2026-11-06
- Published
- 2026-11-08 01:38 UTC
- Last updated
- 2026-11-08 01:38 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/123xxx/CVE-2026-123616.json
- Linked Threat
- CVE-2026-123616 — imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-119375
EUVD enrichment is queued; refresh the page in a few seconds.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| imgproxy | imgproxy |
3.3.0 (affected),
4.0.16 (unaffected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
- GitHub Security Advisory (GHSA-mmq5-xm89-9pfg) vendor-advisory
- VulnCheck Advisory: imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader third-party-advisory
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:app.opencve.io
Explore the latest vulnerabilities and security issues in the CVE database
2026-11-08 10:21 UTC -
web:cvedatabase.com
Search and analyze CVE vulnerabilities with instant access to CVSS scores, affected products, and remediation guidance.
2026-11-08 10:21 UTC -
web:endpointweekly.com
All 633 CVEs from September 2026 Patch Tuesday — searchable, filterable, with plain-English IT admin notes on every vulnerability. Includes CVE - 2026 -81963, the exploited Windows Update Stack EoP, and the five CVEs KB5124008 does not fix .
2026-11-08 10:21 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-11-08 10:21 UTC -
web:support.esri.com
The issues resolved by these patches are listed in the Issues addressed with this patch section below. As part of the patch installation, the ArcGIS Server service is stopped and restarted. The restart may take several minutes depending on the number of services published on the ArcGIS Server site. This patch can be uninstalled as outlined in the Uninstalling this patch on Windows and ...
2026-11-08 10:21 UTC -
web:support.servicenow.com
What you need to know: On September 24, 2026 , ServiceNow issued CVE - 2026 -86857, CVE - 2026 -86858, CVE - 2026 -13016, CVE - 2026 -86859, and CVE - 2026 -86860. Each of these security issues was identified through internal security testing, customer security assessments, or reports submitted through ServiceNow's responsible disclosure and bug bounty programs and was remediated independently. For security ...
2026-11-08 10:21 UTC -
web:techcommunity.microsoft.com
Learn more: Azure WAF custom rules for PHP2Shell mitigation . Request-side signals alone may not be sufficient to reliably identify certain exploitation attempts. Signals in the server response can provide additional evidence that malicious activity has occurred, enabling more targeted mitigation with higher confidence and lower false positives.
2026-11-08 10:21 UTC -
web:www.microsoft.com
If you can't patch immediately: Apply the PHP project's interim mitigations and the Azure WAF protections. Note: This reduces exposure but doesn't fix the underlying vulnerabilities.
2026-11-08 10:21 UTC -
web:www.openhands.dev
Compare 8 automated vulnerability remediation tools for 2026 on fixes, prioritization, integrations, and deployment control.
2026-11-08 10:21 UTC -
web:www.oracle.com
Oracle Database Server Client-Only Installations The following Oracle Database Server vulnerabilities included in this Critical Security Patch Update affect client-only installations: CVE - 2026 -83348 and CVE - 2026 -83156. Oracle Autonomous Health Framework Risk Matrix This Critical Security Patch Update contains 2 new security patches, plus additional third party patches noted below, for Oracle ...
2026-11-08 10:21 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-123616.json.
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "imgproxy",
"vendor": "imgproxy",
"versions": [
{
"lessThan": "4.0.16",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.0.16",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:evilmartians:imgproxy:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.0.16",
"versionStartIncluding": "3.3.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "haileyok"
}
],
"datePublic": "2026-10-06T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "imgproxy from 3.3.0 before 4.0.16 contains an unbounded memory allocation vulnerability in the ICO loader that fails to validate the data_size field. Attackers can supply a crafted 23-byte ICO file declaring a ~4GB data_size to trigger memory exhaustion and worker crashes without authentication."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "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",
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},
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{
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-789",
"description": "Memory Allocation with Excessive Size Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-08T01:38:40.389Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-mmq5-xm89-9pfg)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/imgproxy/imgproxy/security/advisories/GHSA-mmq5-xm89-9pfg"
},
{
"name": "VulnCheck Advisory: imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/imgproxy-3.3.0-before-4.0.16-memory-exhaustion-dos-via-ico-loader"
}
],
"title": "imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-123616",
"datePublished": "2026-11-08T01:38:40.389Z",
"dateReserved": "2026-11-06T01:04:42.201Z",
"dateUpdated": "2026-11-08T01:38:40.389Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}