CVE-2023-49568 (GCVE-0-2023-49568)
Vulnerability from cvelistv5 – Published: 2024-01-12 10:36 – Updated: 2025-06-17 21:09
VLAI
EPSS
VEX
Title
Maliciously crafted Git server replies can cause DoS on go-git clients
Summary
A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git clients.
Applications using only the in-memory filesystem supported by go-git are not affected by this vulnerability.
This is a go-git implementation issue and does not affect the upstream git cli.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-12 18:15 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2024-01-12 10:16
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T22:01:25.669Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-49568",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-01-12T18:15:52.909462Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-17T21:09:18.035Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "go-git",
"vendor": "go-git",
"versions": [
{
"status": "affected",
"version": "5.11.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Ionu\u021b Lalu"
}
],
"datePublic": "2024-01-12T10:16:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA denial of service (DoS) vulnerability was discovered in go-git versions prior to \u003ccode\u003ev5.11\u003c/code\u003e. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;clients.\u003c/p\u003e\u003cp\u003eApplications using only the in-memory filesystem supported by \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;are not affected by this vulnerability.\u003cbr\u003eThis is a \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;implementation issue and does not affect the upstream \u003ccode\u003egit\u003c/code\u003e\u0026nbsp;cli.\u003c/p\u003e\u003cbr\u003e"
}
],
"value": "A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git\u00a0clients.\n\nApplications using only the in-memory filesystem supported by go-git\u00a0are not affected by this vulnerability.\nThis is a go-git\u00a0implementation issue and does not affect the upstream git\u00a0cli.\n\n\n"
}
],
"impacts": [
{
"capecId": "CAPEC-130",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-130 Excessive Allocation"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"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",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-12T10:36:12.727Z",
"orgId": "b3d5ebe7-963e-41fb-98e1-2edaeabb8f82",
"shortName": "Bitdefender"
},
"references": [
{
"url": "https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An upgrade to v. 5.11 fixes this issue\u003cbr\u003e"
}
],
"value": "An upgrade to v. 5.11 fixes this issue\n"
}
],
"source": {
"advisory": "GHSA-mw99-9chc-xw7r",
"discovery": "EXTERNAL"
},
"title": "Maliciously crafted Git server replies can cause DoS on go-git clients",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "b3d5ebe7-963e-41fb-98e1-2edaeabb8f82",
"assignerShortName": "Bitdefender",
"cveId": "CVE-2023-49568",
"datePublished": "2024-01-12T10:36:12.727Z",
"dateReserved": "2023-11-27T14:21:51.157Z",
"dateUpdated": "2025-06-17T21:09:18.035Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-49568",
"date": "2026-09-15",
"epss": "0.00698",
"percentile": "0.51211"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*\", \"versionStartIncluding\": \"4.0.0\", \"versionEndExcluding\": \"5.11.0\", \"matchCriteriaId\": \"61C9245F-61A4-4756-83B1-13CE56E28FF0\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git\\u00a0clients.\\n\\nApplications using only the in-memory filesystem supported by go-git\\u00a0are not affected by this vulnerability.\\nThis is a go-git\\u00a0implementation issue and does not affect the upstream git\\u00a0cli.\\n\\n\\n\"}, {\"lang\": \"es\", \"value\": \"Se descubri\\u00f3 una vulnerabilidad de denegaci\\u00f3n de servicio (DoS) en versiones de go-git anteriores a la v5.11. Esta vulnerabilidad permite a un atacante realizar ataques de denegaci\\u00f3n de servicio proporcionando respuestas especialmente manipuladas desde un servidor Git que provoca el agotamiento de los recursos en los clientes go-git. Las aplicaciones que utilizan \\u00fanicamente el sistema de archivos en memoria compatible con go-git no se ven afectadas por esta vulnerabilidad. Este es un problema de implementaci\\u00f3n de go-git y no afecta el cli de git ascendente.\"}]",
"id": "CVE-2023-49568",
"lastModified": "2024-11-21T08:33:34.447",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"cve-requests@bitdefender.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
"published": "2024-01-12T11:15:12.680",
"references": "[{\"url\": \"https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r\", \"source\": \"cve-requests@bitdefender.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "cve-requests@bitdefender.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"cve-requests@bitdefender.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
},
"microsoft_vex": {
"current_release_date": "2026-02-18T03:21:11.000Z",
"cve": "CVE-2023-49568",
"id": "msrc_CVE-2023-49568",
"initial_release_date": "2024-01-01T08:00:00.000Z",
"product_status:fixed": "5",
"product_status:known_affected": "5",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "Maliciously crafted Git server replies can cause DoS on go-git clients",
"url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2023-49568.json",
"version": "3"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-49568\",\"sourceIdentifier\":\"cve-requests@bitdefender.com\",\"published\":\"2024-01-12T11:15:12.680\",\"lastModified\":\"2026-06-17T06:36:10.430\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git\u00a0clients.\\n\\nApplications using only the in-memory filesystem supported by go-git\u00a0are not affected by this vulnerability.\\nThis is a go-git\u00a0implementation issue and does not affect the upstream git\u00a0cli.\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Se descubri\u00f3 una vulnerabilidad de denegaci\u00f3n de servicio (DoS) en versiones de go-git anteriores a la v5.11. Esta vulnerabilidad permite a un atacante realizar ataques de denegaci\u00f3n de servicio proporcionando respuestas especialmente manipuladas desde un servidor Git que provoca el agotamiento de los recursos en los clientes go-git. Las aplicaciones que utilizan \u00fanicamente el sistema de archivos en memoria compatible con go-git no se ven afectadas por esta vulnerabilidad. Este es un problema de implementaci\u00f3n de go-git y no afecta el cli de git ascendente.\"}],\"affected\":[{\"source\":\"cve-requests@bitdefender.com\",\"affectedData\":[{\"vendor\":\"go-git\",\"product\":\"go-git\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"5.11.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve-requests@bitdefender.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-01-12T18:15:52.909462Z\",\"id\":\"CVE-2023-49568\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cve-requests@bitdefender.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*\",\"versionStartIncluding\":\"4.0.0\",\"versionEndExcluding\":\"5.11.0\",\"matchCriteriaId\":\"61C9245F-61A4-4756-83B1-13CE56E28FF0\"}]}]}],\"references\":[{\"url\":\"https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r\",\"source\":\"cve-requests@bitdefender.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-08-24T13:00:39+00:00",
"cve": "CVE-2023-49568",
"id": "CVE-2023-49568",
"initial_release_date": "2023-12-24T00:00:00+00:00",
"product_status:fixed": "612",
"product_status:known_affected": "32",
"product_status:known_not_affected": "7136",
"product_status:under_investigation": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "go-git: Maliciously crafted Git server replies can cause DoS on go-git clients",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-49568.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"cna\": {\"affected\": [{\"defaultStatus\": \"unaffected\", \"product\": \"go-git\", \"vendor\": \"go-git\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.11.0\"}]}], \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"Ionu\\u021b Lalu\"}], \"datePublic\": \"2024-01-12T10:16:00.000Z\", \"descriptions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eA denial of service (DoS) vulnerability was discovered in go-git versions prior to \u003ccode\u003ev5.11\u003c/code\u003e. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;clients.\u003c/p\u003e\u003cp\u003eApplications using only the in-memory filesystem supported by \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;are not affected by this vulnerability.\u003cbr\u003eThis is a \u003ccode\u003ego-git\u003c/code\u003e\u0026nbsp;implementation issue and does not affect the upstream \u003ccode\u003egit\u003c/code\u003e\u0026nbsp;cli.\u003c/p\u003e\u003cbr\u003e\"}], \"value\": \"A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git\\u00a0clients.\\n\\nApplications using only the in-memory filesystem supported by go-git\\u00a0are not affected by this vulnerability.\\nThis is a go-git\\u00a0implementation issue and does not affect the upstream git\\u00a0cli.\\n\\n\\n\"}], \"impacts\": [{\"capecId\": \"CAPEC-130\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-130 Excessive Allocation\"}]}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"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\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-20\", \"description\": \"CWE-20 Improper Input Validation\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"orgId\": \"b3d5ebe7-963e-41fb-98e1-2edaeabb8f82\", \"shortName\": \"Bitdefender\", \"dateUpdated\": \"2024-01-12T10:36:12.727Z\"}, \"references\": [{\"url\": \"https://github.com/go-git/go-git/security/advisories/GHSA-mw99-9chc-xw7r\"}], \"solutions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"An upgrade to v. 5.11 fixes this issue\u003cbr\u003e\"}], \"value\": \"An upgrade to v. 5.11 fixes this issue\\n\"}], \"source\": {\"advisory\": \"GHSA-mw99-9chc-xw7r\", \"discovery\": \"EXTERNAL\"}, \"title\": \"Maliciously crafted Git server replies can cause DoS on go-git clients\", \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-49568\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-01-12T18:15:52.909462Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-06-17T21:07:22.529Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
"cveMetadata": "{\"cveId\": \"CVE-2023-49568\", \"assignerOrgId\": \"b3d5ebe7-963e-41fb-98e1-2edaeabb8f82\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Bitdefender\", \"dateReserved\": \"2023-11-27T14:21:51.157Z\", \"datePublished\": \"2024-01-12T10:36:12.727Z\", \"dateUpdated\": \"2024-08-02T22:01:25.669Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
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.
Loading…