CVE-2023-22726 (GCVE-0-2023-22726)
Vulnerability from cvelistv5 – Published: 2023-01-20 21:02 – Updated: 2025-03-10 21:21
VLAI
EPSS
VEX
Title
Unrestricted file upload leading to privilege escalation in act
Summary
act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-10 21:01 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M
CNA
References
7 references
| URL | Tags |
|---|---|
| https://github.com/nektos/act/security/advisories… | x_refsource_CONFIRM |
| https://github.com/nektos/act/issues/1553 | x_refsource_MISC |
| https://github.com/nektos/act/commit/63ae215071f9… | x_refsource_MISC |
| https://github.com/nektos/act/blob/master/pkg/art… | x_refsource_MISC |
| https://github.com/nektos/act/blob/v0.2.35/pkg/ar… | x_refsource_MISC |
| https://github.com/nektos/act/blob/v0.2.35/pkg/ar… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T10:13:50.194Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff"
},
{
"name": "https://github.com/nektos/act/issues/1553",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/issues/1553"
},
{
"name": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10"
},
{
"name": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2"
},
{
"name": "https://securitylab.github.com/advisories/GHSL-2023-004_act/",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://securitylab.github.com/advisories/GHSL-2023-004_act/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-22726",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-10T21:01:07.479449Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-03-10T21:21:14.383Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "act",
"vendor": "nektos",
"versions": [
{
"status": "affected",
"version": "\u003c 0.2.40"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-01-20T21:02:35.083Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff"
},
{
"name": "https://github.com/nektos/act/issues/1553",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/issues/1553"
},
{
"name": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10"
},
{
"name": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2"
},
{
"name": "https://securitylab.github.com/advisories/GHSL-2023-004_act/",
"tags": [
"x_refsource_MISC"
],
"url": "https://securitylab.github.com/advisories/GHSL-2023-004_act/"
}
],
"source": {
"advisory": "GHSA-pc99-qmg4-rcff",
"discovery": "UNKNOWN"
},
"title": "Unrestricted file upload leading to privilege escalation in act"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-22726",
"datePublished": "2023-01-20T21:02:35.083Z",
"dateReserved": "2023-01-06T14:21:05.890Z",
"dateUpdated": "2025-03-10T21:21:14.383Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T10:13:50.194Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff"
},
{
"name": "https://github.com/nektos/act/issues/1553",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/issues/1553"
},
{
"name": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10"
},
{
"name": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2"
},
{
"name": "https://securitylab.github.com/advisories/GHSL-2023-004_act/",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://securitylab.github.com/advisories/GHSL-2023-004_act/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-22726",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-10T21:01:07.479449Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-03-10T21:01:08.798Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "act",
"vendor": "nektos",
"versions": [
{
"status": "affected",
"version": "\u003c 0.2.40"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-01-20T21:02:35.083Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcff"
},
{
"name": "https://github.com/nektos/act/issues/1553",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/issues/1553"
},
{
"name": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10"
},
{
"name": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245"
},
{
"name": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2"
},
{
"name": "https://securitylab.github.com/advisories/GHSL-2023-004_act/",
"tags": [
"x_refsource_MISC"
],
"url": "https://securitylab.github.com/advisories/GHSL-2023-004_act/"
}
],
"source": {
"advisory": "GHSA-pc99-qmg4-rcff",
"discovery": "UNKNOWN"
},
"title": "Unrestricted file upload leading to privilege escalation in act"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-22726",
"datePublished": "2023-01-20T21:02:35.083Z",
"dateReserved": "2023-01-06T14:21:05.890Z",
"dateUpdated": "2025-03-10T21:21:14.383Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.