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Vulnerability from cleanstart
Published
2026-05-18 13:43
Modified
2026-05-05 07:18
Summary
Security fixes for CVE-2026-39882, CVE-2026-39883, ghsa-hfvc-g4fc-pqhx, ghsa-w8rr-5gcm-pp58 applied in versions: 3.1.0-r0
Details
Multiple security vulnerabilities affect the distribution-fips package. These issues are resolved in later releases. See references for individual vulnerability details.
References
{
"affected": [
{
"package": {
"ecosystem": "CleanStart",
"name": "distribution-fips"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.0-r0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"credits": [],
"database_specific": {},
"details": "Multiple security vulnerabilities affect the distribution-fips package. These issues are resolved in later releases. See references for individual vulnerability details.",
"id": "CLEANSTART-2026-MZ61768",
"modified": "2026-05-05T07:18:21Z",
"published": "2026-05-18T13:43:52.041062Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-MZ61768.json"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39882"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39883"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-hfvc-g4fc-pqhx"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-w8rr-5gcm-pp58"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39882"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39883"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes for CVE-2026-39882, CVE-2026-39883, ghsa-hfvc-g4fc-pqhx, ghsa-w8rr-5gcm-pp58 applied in versions: 3.1.0-r0",
"upstream": [
"CVE-2026-39882",
"CVE-2026-39883",
"ghsa-hfvc-g4fc-pqhx",
"ghsa-w8rr-5gcm-pp58"
]
}
CVE-2026-39882 (GCVE-0-2026-39882)
Vulnerability from cvelistv5 – Published: 2026-04-08 20:24 – Updated: 2026-04-09 20:22
VLAI
EPSS
VEX
Title
OpenTelemetry-Go OTLP HTTP exporters read unbounded HTTP response bodies
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_CONFIRM |
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-go |
Affected:
< 1.43.0
|
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CVE-2026-39883 (GCVE-0-2026-39883)
Vulnerability from cvelistv5 – Published: 2026-04-08 20:26 – Updated: 2026-07-10 12:06
VLAI
EPSS
VEX
Title
OpenTelemetry-Go has an incomplete fix for CVE-2026-24051: BSD kenv command not using absolute path enables PATH hijacking
Summary
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.15.0 to 1.42.0, the fix for CVE-2026-24051 changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms. This vulnerability is fixed in 1.43.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-426 - Untrusted Search Path
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_CONFIRM |
| http://github.com/open-telemetry/opentelemetry-go… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-39883 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2456718 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:37387 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26257 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26254 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-go |
Affected:
>= 1.15.0, < 1.43.0
|
|
| Red Hat | Red Hat Openshift Data Foundation 4.22 |
cpe:/a:redhat:openshift_data_foundation:4.22::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
cpe:/a:redhat:multicluster_engine:2.8::el8 |
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GHSA-HFVC-G4FC-PQHX
Vulnerability from github – Published: 2026-04-08 19:22 – Updated: 2026-04-09 14:29
VLAI
Summary
opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking
Details
Summary
The fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.
Root Cause
sdk/resource/host_id.go line 42:
if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {
Compare with the fixed Darwin path at line 58:
result, err := r.execCommand("/usr/sbin/ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
The execCommand helper at sdk/resource/host_id_exec.go uses exec.Command(name, arg...) which searches $PATH when the command name contains no path separator.
Affected platforms (per build tag in host_id_bsd.go:4): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.
The kenv path is reached when /etc/hostid does not exist (line 38-40), which is common on FreeBSD systems.
Attack
- Attacker has local access to a system running a Go application that imports
go.opentelemetry.io/otel/sdk - Attacker places a malicious
kenvbinary earlier in$PATH - Application initializes OpenTelemetry resource detection at startup
hostIDReaderBSD.read()callsexec.Command("kenv", ...)which resolves to the malicious binary- Arbitrary code executes in the context of the application
Same attack vector and impact as CVE-2026-24051.
Suggested Fix
Use the absolute path:
if result, err := r.execCommand("/bin/kenv", "-q", "smbios.system.uuid"); err == nil {
On FreeBSD, kenv is located at /bin/kenv.
Severity
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.42.0"
},
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel/sdk"
},
"ranges": [
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.43.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39883"
],
"database_specific": {
"cwe_ids": [
"CWE-426"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-08T19:22:12Z",
"nvd_published_at": "2026-04-08T21:17:00Z",
"severity": "HIGH"
},
"details": "## Summary\n\nThe fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin `ioreg` command to use an absolute path but left the BSD `kenv` command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.\n\n## Root Cause\n\n`sdk/resource/host_id.go` line 42:\n\n if result, err := r.execCommand(\"kenv\", \"-q\", \"smbios.system.uuid\"); err == nil {\n\nCompare with the fixed Darwin path at line 58:\n\n result, err := r.execCommand(\"/usr/sbin/ioreg\", \"-rd1\", \"-c\", \"IOPlatformExpertDevice\")\n\nThe `execCommand` helper at `sdk/resource/host_id_exec.go` uses `exec.Command(name, arg...)` which searches `$PATH` when the command name contains no path separator.\n\nAffected platforms (per build tag in `host_id_bsd.go:4`): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.\n\nThe `kenv` path is reached when `/etc/hostid` does not exist (line 38-40), which is common on FreeBSD systems.\n\n## Attack\n\n1. Attacker has local access to a system running a Go application that imports `go.opentelemetry.io/otel/sdk`\n2. Attacker places a malicious `kenv` binary earlier in `$PATH`\n3. Application initializes OpenTelemetry resource detection at startup\n4. `hostIDReaderBSD.read()` calls `exec.Command(\"kenv\", ...)` which resolves to the malicious binary\n5. Arbitrary code executes in the context of the application\n\nSame attack vector and impact as CVE-2026-24051.\n\n## Suggested Fix\n\nUse the absolute path:\n\n if result, err := r.execCommand(\"/bin/kenv\", \"-q\", \"smbios.system.uuid\"); err == nil {\n\nOn FreeBSD, `kenv` is located at `/bin/kenv`.",
"id": "GHSA-hfvc-g4fc-pqhx",
"modified": "2026-04-09T14:29:41Z",
"published": "2026-04-08T19:22:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx"
},
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39883"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-telemetry/opentelemetry-go"
},
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"type": "WEB",
"url": "http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0"
}
],
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{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking"
}
GHSA-W8RR-5GCM-PP58
Vulnerability from github – Published: 2026-04-08 19:22 – Updated: 2026-04-09 14:29
VLAI
Summary
opentelemetry-go: OTLP HTTP exporters read unbounded HTTP response bodies
Details
overview:
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
Severity
5.3 (Medium)
{
"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"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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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.
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