WID-SEC-W-2026-4338
Vulnerability from csaf_certbund - Published: 2026-11-03 23:00 - Updated: 2026-11-03 23:00| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source BuildKit <0.34.1
Open Source / BuildKit
|
<0.34.1 |
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source BuildKit <0.34.2
Open Source / BuildKit
|
<0.34.2 | ||
|
Open Source BuildKit <0.34.1
Open Source / BuildKit
|
<0.34.1 |
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "BuildKit ist ein Open-Source-Toolkit zum effizienten und sicheren Erstellen von Container-Images, das erweiterte Funktionen wie parallele Build-Ausf\u00fchrung, Caching und Erweiterbarkeit bietet.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann mehrere Schwachstellen in BuildKit ausnutzen, um Privilegien zu erh\u00f6hen oder einen Denial of Service zu verursachen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-4338 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4338.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-4338 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4338"
},
{
"category": "external",
"summary": "GitHub Security Advisory GHSA-2fqp-xg6f-v7gj vom 2026-11-03",
"url": "https://github.com/moby/buildkit/security/advisories/GHSA-2fqp-xg6f-v7gj"
},
{
"category": "external",
"summary": "GitHub Security Advisory GHSA-w26x-xg27-7qjc vom 2026-11-03",
"url": "https://github.com/moby/buildkit/security/advisories/GHSA-w26x-xg27-7qjc"
}
],
"source_lang": "en-US",
"title": "BuildKit: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-11-03T23:00:00.000+00:00",
"generator": {
"date": "2026-11-04T12:59:07.719+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.7.0"
}
},
"id": "WID-SEC-W-2026-4338",
"initial_release_date": "2026-11-03T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-11-03T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c0.34.1",
"product": {
"name": "Open Source BuildKit \u003c0.34.1",
"product_id": "T062449"
}
},
{
"category": "product_version",
"name": "0.34.1",
"product": {
"name": "Open Source BuildKit 0.34.1",
"product_id": "T062449-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mobyproject:buildkit:0.34.1"
}
}
},
{
"category": "product_version_range",
"name": "\u003c0.34.2",
"product": {
"name": "Open Source BuildKit \u003c0.34.2",
"product_id": "T062450"
}
},
{
"category": "product_version",
"name": "0.34.2",
"product": {
"name": "Open Source BuildKit 0.34.2",
"product_id": "T062450-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mobyproject:buildkit:0.34.2"
}
}
}
],
"category": "product_name",
"name": "BuildKit"
}
],
"category": "vendor",
"name": "Open Source"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-121520",
"product_status": {
"known_affected": [
"T062449"
]
},
"release_date": "2026-11-03T23:00:00.000+00:00",
"title": "CVE-2026-121520"
},
{
"cve": "CVE-2026-121522",
"product_status": {
"known_affected": [
"T062450",
"T062449"
]
},
"release_date": "2026-11-03T23:00:00.000+00:00",
"title": "CVE-2026-121522"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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Related by attack behaviour
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