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Vulnerability from cleanstart
Package grafana-mimir-fips version 2.17.10-r0 fixes 3 vulnerabilities: ghsa-w8rr-5gcm-pp58, CVE-2026-27141, CVE-2026-39882
| URL | Type | |
|---|---|---|
{
"affected": [
{
"package": {
"ecosystem": "Alpine",
"name": "grafana-mimir-fips"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.17.10-r0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.17.10-r0"
]
}
],
"credits": [],
"database_specific": {},
"details": "Package grafana-mimir-fips version 2.17.10-r0 fixes 3 vulnerabilities: ghsa-w8rr-5gcm-pp58, CVE-2026-27141, CVE-2026-39882",
"id": "CLEANSTART-2026-IS30019",
"modified": "2026-07-30T09:37:52Z",
"published": "2026-07-30T07:10:53Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/grafana/mimir"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in grafana-mimir-fips 2.17.10-r0",
"upstream": [
"ghsa-w8rr-5gcm-pp58",
"CVE-2026-27141",
"CVE-2026-39882"
]
}
CVE-2026-27141 (GCVE-0-2026-27141)
Vulnerability from cvelistv5 – Published: 2026-02-26 18:50 – Updated: 2026-02-27 19:11- CWE-476 - NULL Pointer Dereference
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0.50.0 , < 0.51.0
(semver)
|
{
"containers": {
"adp": [
{
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2026-27141",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-27T19:11:24.117207Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-27T19:11:57.260Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/net/http2",
"product": "golang.org/x/net/http2",
"programRoutines": [
{
"name": "typeFrameParser"
},
{
"name": "ClientConn.Close"
},
{
"name": "ClientConn.Ping"
},
{
"name": "ClientConn.RoundTrip"
},
{
"name": "ClientConn.Shutdown"
},
{
"name": "ConfigureServer"
},
{
"name": "ConfigureTransport"
},
{
"name": "ConfigureTransports"
},
{
"name": "ConnectionError.Error"
},
{
"name": "ErrCode.String"
},
{
"name": "FrameHeader.String"
},
{
"name": "FrameType.String"
},
{
"name": "FrameWriteRequest.String"
},
{
"name": "Framer.ReadFrame"
},
{
"name": "Framer.ReadFrameForHeader"
},
{
"name": "Framer.ReadFrameHeader"
},
{
"name": "Framer.WriteContinuation"
},
{
"name": "Framer.WriteData"
},
{
"name": "Framer.WriteDataPadded"
},
{
"name": "Framer.WriteGoAway"
},
{
"name": "Framer.WriteHeaders"
},
{
"name": "Framer.WritePing"
},
{
"name": "Framer.WritePriority"
},
{
"name": "Framer.WritePriorityUpdate"
},
{
"name": "Framer.WritePushPromise"
},
{
"name": "Framer.WriteRSTStream"
},
{
"name": "Framer.WriteRawFrame"
},
{
"name": "Framer.WriteSettings"
},
{
"name": "Framer.WriteSettingsAck"
},
{
"name": "Framer.WriteWindowUpdate"
},
{
"name": "GoAwayError.Error"
},
{
"name": "ReadFrameHeader"
},
{
"name": "Server.ServeConn"
},
{
"name": "Setting.String"
},
{
"name": "SettingID.String"
},
{
"name": "SettingsFrame.ForeachSetting"
},
{
"name": "StreamError.Error"
},
{
"name": "Transport.CloseIdleConnections"
},
{
"name": "Transport.NewClientConn"
},
{
"name": "Transport.RoundTrip"
},
{
"name": "Transport.RoundTripOpt"
},
{
"name": "bufferedWriter.Flush"
},
{
"name": "bufferedWriter.Write"
},
{
"name": "bufferedWriterTimeoutWriter.Write"
},
{
"name": "chunkWriter.Write"
},
{
"name": "clientConnPool.GetClientConn"
},
{
"name": "connError.Error"
},
{
"name": "dataBuffer.Read"
},
{
"name": "duplicatePseudoHeaderError.Error"
},
{
"name": "gzipReader.Close"
},
{
"name": "gzipReader.Read"
},
{
"name": "headerFieldNameError.Error"
},
{
"name": "headerFieldValueError.Error"
},
{
"name": "netHTTPClientConn.Close"
},
{
"name": "netHTTPClientConn.RoundTrip"
},
{
"name": "noDialClientConnPool.GetClientConn"
},
{
"name": "noDialH2RoundTripper.NewClientConn"
},
{
"name": "noDialH2RoundTripper.RoundTrip"
},
{
"name": "pipe.Read"
},
{
"name": "priorityWriteSchedulerRFC7540.CloseStream"
},
{
"name": "priorityWriteSchedulerRFC7540.OpenStream"
},
{
"name": "priorityWriteSchedulerRFC9218.OpenStream"
},
{
"name": "pseudoHeaderError.Error"
},
{
"name": "requestBody.Close"
},
{
"name": "requestBody.Read"
},
{
"name": "responseWriter.Flush"
},
{
"name": "responseWriter.FlushError"
},
{
"name": "responseWriter.Push"
},
{
"name": "responseWriter.SetReadDeadline"
},
{
"name": "responseWriter.SetWriteDeadline"
},
{
"name": "responseWriter.Write"
},
{
"name": "responseWriter.WriteHeader"
},
{
"name": "responseWriter.WriteString"
},
{
"name": "roundRobinWriteScheduler.OpenStream"
},
{
"name": "serverConn.CloseConn"
},
{
"name": "serverConn.Flush"
},
{
"name": "stickyErrWriter.Write"
},
{
"name": "transportResponseBody.Close"
},
{
"name": "transportResponseBody.Read"
},
{
"name": "unencryptedTransport.RoundTrip"
},
{
"name": "writeData.String"
}
],
"vendor": "golang.org/x/net",
"versions": [
{
"lessThan": "0.51.0",
"status": "affected",
"version": "0.50.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T18:50:31.830Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27141"
},
{
"url": "https://go.dev/cl/746180"
},
{
"url": "https://go.dev/issue/77652"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-4559"
}
],
"title": "Sending certain HTTP/2 frames can cause a server to panic in golang.org/x/net"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-27141",
"datePublished": "2026-02-26T18:50:31.830Z",
"dateReserved": "2026-02-17T19:57:28.435Z",
"dateUpdated": "2026-02-27T19:11:57.260Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-39882 (GCVE-0-2026-39882)
Vulnerability from cvelistv5 – Published: 2026-04-08 20:24 – Updated: 2026-04-09 20:22- CWE-789 - Memory Allocation with Excessive Size Value
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_CONFIRM |
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-go |
Affected:
< 1.43.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-39882",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-09T20:21:49.122499Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-09T20:22:03.109Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "opentelemetry-go",
"vendor": "open-telemetry",
"versions": [
{
"status": "affected",
"version": "\u003c 1.43.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to 1.43.0, the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory bytes.Buffer without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is attacker-controlled (or a network attacker can mitm the exporter connection). This vulnerability is fixed in 1.43.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-789",
"description": "CWE-789: Memory Allocation with Excessive Size Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T20:24:19.246Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58"
},
{
"name": "https://github.com/open-telemetry/opentelemetry-go/pull/8108",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-telemetry/opentelemetry-go/pull/8108"
}
],
"source": {
"advisory": "GHSA-w8rr-5gcm-pp58",
"discovery": "UNKNOWN"
},
"title": "OpenTelemetry-Go OTLP HTTP exporters read unbounded HTTP response bodies"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-39882",
"datePublished": "2026-04-08T20:24:19.246Z",
"dateReserved": "2026-04-07T20:32:03.010Z",
"dateUpdated": "2026-04-09T20:22:03.109Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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GHSA-W8RR-5GCM-PP58
Vulnerability from github – Published: 2026-04-08 19:22 – Updated: 2026-04-09 14:29overview:
this report shows that the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory bytes.Buffer without a size cap.
this is exploitable for memory exhaustion when the configured collector endpoint is attacker-controlled (or a network attacker can mitm the exporter connection).
severity
HIGH
not claiming: this is a remote dos against every default deployment. claiming: if the exporter sends traces to an untrusted collector endpoint (or over a network segment where mitm is realistic), that endpoint can crash the process via a large response body.
callsite (pinned): - exporters/otlp/otlptrace/otlptracehttp/client.go:199 - exporters/otlp/otlptrace/otlptracehttp/client.go:230 - exporters/otlp/otlpmetric/otlpmetrichttp/client.go:170 - exporters/otlp/otlpmetric/otlpmetrichttp/client.go:201 - exporters/otlp/otlplog/otlploghttp/client.go:190 - exporters/otlp/otlplog/otlploghttp/client.go:221
permalinks (pinned): - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlptrace/otlptracehttp/client.go#L199 - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlptrace/otlptracehttp/client.go#L230 - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlpmetric/otlpmetrichttp/client.go#L170 - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlpmetric/otlpmetrichttp/client.go#L201 - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlplog/otlploghttp/client.go#L190 - https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlplog/otlploghttp/client.go#L221
root cause:
each exporter client reads resp.Body using io.Copy(&respData, resp.Body) into a bytes.Buffer on both success and error paths, with no upper bound.
impact: a malicious collector can force large transient heap allocations during export (peak memory scales with attacker-chosen response size) and can potentially crash the instrumented process (oom).
affected component: - go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp - go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp - go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp
repro (local-only):
unzip poc.zip -d poc
cd poc
make canonical resp_bytes=33554432 chunk_delay_ms=0
expected output contains:
[CALLSITE_HIT]: otlptracehttp.UploadTraces::io.Copy(resp.Body)
[PROOF_MARKER]: resp_bytes=33554432 peak_alloc_bytes=118050512
control (same env, patched target):
unzip poc.zip -d poc
cd poc
make control resp_bytes=33554432 chunk_delay_ms=0
expected control output contains:
[CALLSITE_HIT]: otlptracehttp.UploadTraces::io.Copy(resp.Body)
[NC_MARKER]: resp_bytes=33554432 peak_alloc_bytes=512232
attachments: poc.zip (attached)
Fixed in: https://github.com/open-telemetry/opentelemetry-go/pull/8108
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.43.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.43.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.19.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39882"
],
"database_specific": {
"cwe_ids": [
"CWE-789"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-08T19:22:01Z",
"nvd_published_at": "2026-04-08T21:17:00Z",
"severity": "MODERATE"
},
"details": "overview:\nthis report shows that the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory `bytes.Buffer` without a size cap.\n\nthis is exploitable for memory exhaustion when the configured collector endpoint is attacker-controlled (or a network attacker can mitm the exporter connection).\n\nseverity\n\nHIGH\n\nnot claiming: this is a remote dos against every default deployment.\nclaiming: if the exporter sends traces to an untrusted collector endpoint (or over a network segment where mitm is realistic), that endpoint can crash the process via a large response body.\n\ncallsite (pinned):\n- exporters/otlp/otlptrace/otlptracehttp/client.go:199\n- exporters/otlp/otlptrace/otlptracehttp/client.go:230\n- exporters/otlp/otlpmetric/otlpmetrichttp/client.go:170\n- exporters/otlp/otlpmetric/otlpmetrichttp/client.go:201\n- exporters/otlp/otlplog/otlploghttp/client.go:190\n- exporters/otlp/otlplog/otlploghttp/client.go:221\n\npermalinks (pinned):\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlptrace/otlptracehttp/client.go#L199\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlptrace/otlptracehttp/client.go#L230\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlpmetric/otlpmetrichttp/client.go#L170\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlpmetric/otlpmetrichttp/client.go#L201\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlplog/otlploghttp/client.go#L190\n- https://github.com/open-telemetry/opentelemetry-go/blob/248da958375e4dfb4a1105645107be3ef04b1c59/exporters/otlp/otlplog/otlploghttp/client.go#L221\n\nroot cause:\neach exporter client reads `resp.Body` using `io.Copy(\u0026respData, resp.Body)` into a `bytes.Buffer` on both success and error paths, with no upper bound.\n\nimpact:\na malicious collector can force large transient heap allocations during export (peak memory scales with attacker-chosen response size) and can potentially crash the instrumented process (oom).\n\naffected component:\n- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp\n- go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp\n- go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp\n\nrepro (local-only):\n\n```bash\nunzip poc.zip -d poc\ncd poc\nmake canonical resp_bytes=33554432 chunk_delay_ms=0\n```\n\nexpected output contains:\n\n```\n[CALLSITE_HIT]: otlptracehttp.UploadTraces::io.Copy(resp.Body)\n[PROOF_MARKER]: resp_bytes=33554432 peak_alloc_bytes=118050512\n```\n\ncontrol (same env, patched target):\n\n```bash\nunzip poc.zip -d poc\ncd poc\nmake control resp_bytes=33554432 chunk_delay_ms=0\n```\n\nexpected control output contains:\n\n```\n[CALLSITE_HIT]: otlptracehttp.UploadTraces::io.Copy(resp.Body)\n[NC_MARKER]: resp_bytes=33554432 peak_alloc_bytes=512232\n```\n\nattachments: poc.zip (attached)\n\n[PR_DESCRIPTION.md](https://github.com/user-attachments/files/25564272/PR_DESCRIPTION.md)\n\n[attack_scenario.md](https://github.com/user-attachments/files/25564273/attack_scenario.md)\n\n[poc.zip](https://github.com/user-attachments/files/25564271/poc.zip)\n\n\nFixed in: https://github.com/open-telemetry/opentelemetry-go/pull/8108",
"id": "GHSA-w8rr-5gcm-pp58",
"modified": "2026-04-09T14:29:37Z",
"published": "2026-04-08T19:22:01Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39882"
},
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/pull/8108"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-telemetry/opentelemetry-go"
},
{
"type": "WEB",
"url": "http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "opentelemetry-go: OTLP HTTP exporters read unbounded HTTP response bodies"
}
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.
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.