CVE-2026-48050 (GCVE-0-2026-48050)
Vulnerability from cvelistv5 – Published: 2026-08-21 22:40 – Updated: 2026-08-25 16:44
VLAI
EPSS
VEX
Title
Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS
Summary
Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go's `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc's API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 16:44 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Basekick-Labs/arc/security/adv… | x_refsource_CONFIRM |
| https://github.com/Basekick-Labs/arc/commit/32a40… | x_refsource_MISC |
| https://github.com/Basekick-Labs/arc/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Basekick-Labs | arc |
Affected:
< 26.06.1
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-48050",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T16:44:13.830681Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T16:44:36.584Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "arc",
"vendor": "Basekick-Labs",
"versions": [
{
"status": "affected",
"version": "\u003c 26.06.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go\u0027s `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc\u0027s API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.8,
"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:L/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T22:40:12.771Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m"
},
{
"name": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8"
},
{
"name": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
}
],
"source": {
"advisory": "GHSA-j93g-rp6m-j32m",
"discovery": "UNKNOWN"
},
"title": "Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-48050",
"datePublished": "2026-08-21T22:40:12.771Z",
"dateReserved": "2026-05-20T18:15:53.578Z",
"dateUpdated": "2026-08-25T16:44:36.584Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-48050",
"date": "2026-10-15",
"epss": "0.00643",
"percentile": "0.49696"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "arc",
"vendor": "Basekick-Labs",
"versions": [
{
"status": "affected",
"version": "\u003c 26.06.1"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go\u0027s `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc\u0027s API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild."
},
{
"lang": "es",
"value": "Arc es una base de datos de series temporales abierta, nativa de SQL, para telemetr\u00eda. Las versiones anteriores a la 26.06.1 registran los manejadores \u0027net/http/pprof\u0027 de Go en \u0027/debug/pprof/*\u0027 a trav\u00e9s de \u0027app.Use(pprof.New())\u0027 en \u0027internal/api/server.go\u0027, y \u0027/debug/pprof\u0027 se a\u00f1ade a \u0027PublicPrefixes\u0027 en \u0027cmd/arc/main.go\u0027. El middleware de autenticaci\u00f3n hace un cortocircuito antes de la verificaci\u00f3n del token en la coincidencia de prefijo, por lo que los puntos finales son accesibles sin ninguna autenticaci\u00f3n. La versi\u00f3n 26.06.1 contiene un parche. Algunas soluciones provisionales est\u00e1n disponibles. Bloquee \u0027/debug/pprof\u0027 en un proxy inverso / balanceador de carga delante de Arc, restrinja el puerto API de Arc a redes conocidas y de confianza a trav\u00e9s de reglas de cortafuegos, y/o aplique un parche a la compilaci\u00f3n en ejecuci\u00f3n: comente \u0027app.Use(pprof.New())\u0027 en \u0027internal/api/server.go\u0027 y recompile."
}
],
"id": "CVE-2026-48050",
"lastModified": "2026-10-12T16:10:00.220",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-48050",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T16:44:13.830681Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-21T23:16:25.070",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-200"
},
{
"lang": "en",
"value": "CWE-306"
},
{
"lang": "en",
"value": "CWE-400"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-09-09T21:00:38+00:00",
"cve": "CVE-2026-48050",
"id": "CVE-2026-48050",
"initial_release_date": "2026-08-21T22:40:12.771000+00:00",
"product_status:known_affected": "107",
"product_status:known_not_affected": "779",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "net/http/pprof: github.com/basekick-labs/arc: Arc: Information disclosure and Denial of Service via unauthenticated debug endpoints",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48050.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-48050",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T16:44:13.830681Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T16:44:26.819Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "arc",
"vendor": "Basekick-Labs",
"versions": [
{
"status": "affected",
"version": "\u003c 26.06.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go\u0027s `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc\u0027s API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.8,
"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:L/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T22:40:12.771Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m"
},
{
"name": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8"
},
{
"name": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
}
],
"source": {
"advisory": "GHSA-j93g-rp6m-j32m",
"discovery": "UNKNOWN"
},
"title": "Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-48050",
"datePublished": "2026-08-21T22:40:12.771Z",
"dateReserved": "2026-05-20T18:15:53.578Z",
"dateUpdated": "2026-08-25T16:44:36.584Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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.