{"id":"CVE-2026-45292","aliases":["CLSA-2026-1792053312","EUVD-2026-32953","GHSA-rcgg-9c38-7xpx","RHLW-2026-b13520fac3ab7893","RHLW-2026-c5d9dda1cba52009","ROOT-APP-MAVEN-CVE-2026-45292"],"status":"published","title":"opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation","description":"opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01097,"percentile":0.6588,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2026-05-14T16:36:04Z","modified":"2026-11-02T19:46:28Z","fixes":[{"ecosystem":"Maven","package":"io.opentelemetry:opentelemetry-api","fixed_in":["1.62.0"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"io.opentelemetry:opentelemetry-extension-trace-propagators","fixed_in":["1.62.0"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:Maven","package":"io.opentelemetry:opentelemetry-api","fixed_in":["1.29.0-tuxcare.1"],"sources":["osv"]},{"ecosystem":"TuxCare:Maven","package":"io.opentelemetry:opentelemetry-extension-trace-propagators","fixed_in":["1.29.0-tuxcare.1"],"sources":["osv"]},{"ecosystem":"Red Hat 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hat","product":"exploit intelligence"},{"vendor":"red hat","product":"migration toolkit for containers"},{"vendor":"red hat","product":"openshift lightspeed"},{"vendor":"red hat","product":"openshift serverless"},{"vendor":"red hat","product":"red hat 3scale api management platform 2"},{"vendor":"red hat","product":"red hat ai inference server"},{"vendor":"red hat","product":"red hat ansible automation platform 2"},{"vendor":"red hat","product":"red hat data grid 8.6.2"},{"vendor":"red hat","product":"red hat enterprise linux ai (rhel ai) 3"},{"vendor":"red hat","product":"red hat jboss enterprise application platform expansion pack"},{"vendor":"red hat","product":"red hat migration toolkit for applications 8.2"},{"vendor":"red hat","product":"red hat offline knowledge portal 1.2.12"},{"vendor":"red hat","product":"red hat openshift ai (rhoai)"},{"vendor":"red hat","product":"red hat openshift ai 3.4"},{"vendor":"red hat","product":"red hat openshift dev spaces 3.29"},{"vendor":"red hat","product":"red hat quay 3"},{"vendor":"red hat","product":"red hat satellite 6"}],"references":[{"url":"https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpx","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/open-telemetry/opentelemetry-java/pull/8380","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5f","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0","tags":["x_refsource_MISC","web"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-45292","tags":["vdb-entry","x_refsource_REDHAT","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482785","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45292.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://access.redhat.com/errata/RHSA-2026:41951","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:43038","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:28573","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:60520","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:36820","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45292","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rcgg-9c38-7xpx","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45292.json","tags":["advisory"]},{"url":"https://github.com/open-telemetry/opentelemetry-java","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-45292","title":"opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation","description":"opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.","status":"published","published":"2026-05-28T16:37:29.49Z","modified":"2026-09-17T12:04:31.409Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-770","CWE-770"],"updated_at":"2026-11-02T13:46:43.922571Z"}],"euvd":[{"id":"EUVD-2026-32953","description":"opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.","status":"published","published":"2026-05-28T16:37:29Z","modified":"2026-09-17T12:04:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:13.536818Z"}],"ghsa":[{"id":"GHSA-rcgg-9c38-7xpx","title":"OpenTelemetry Java SDK has Unbounded Memory Allocation in W3C Baggage Propagation","description":"## Overview\n\nA vulnerability affects the baggage propagation implementation in\n`opentelemetry-api` and `opentelemetry-extension-trace-propagators`. Parsing oversized baggage\ncauses unbounded memory allocation and CPU consumption. Because baggage is automatically\nre-injected into every outgoing request, the effect can fan out to downstream services that\nnever received the original malicious request.\n\n## Technical Details\n\n- `W3CBaggagePropagator` did not enforce any limit on the total size or entry count of the\n  `baggage` header. The parser iterated character-by-character through the entire value\n  regardless of length.\n- `JaegerPropagator` and `OtTracePropagator` had the same gap in their respective baggage\n  extraction paths.\n- The W3C Baggage specification recommends a maximum of 8,192 bytes and 180 entries; none of\n  these limits were enforced.\n\n## Impact\n\nThe practical availability impact for most deployments is limited. Every major Java HTTP server\nenforces its own header size limit (Tomcat, Jetty, Netty, Vert.x, and gRPC-Java all default to\n8 KiB), constraining what an external attacker can deliver before the application is reached.\nThe risk is higher when transport-layer limits are absent — e.g., a compromised internal service\ncommunicating over a non-HTTP or custom transport.\n\n## Remediation\n\nUpdate to version 1.62.0 or later ([#8380](https://github.com/open-telemetry/opentelemetry-java/pull/8380)).\nThe fix enforces limits consistent with the W3C Baggage specification at the propagator level:\n\n- Maximum total baggage size: 8,192 bytes across all `baggage` header values\n- Maximum number of entries: 64\n\nHeaders that would exceed either limit are dropped at the point the limit is reached;\nalready-extracted valid entries are retained.\n\n## Workarounds\n\nEnsure HTTP header size limits are configured at the server or gateway level. Most Java HTTP\nservers enforce an 8 KiB header limit by default, which mitigates external attack vectors\nindependently of this fix.\n\n## References\n\n- [W3C Baggage Specification §Limits](https://www.w3.org/TR/baggage/#limits)","status":"published","published":"2026-05-14T16:36:04Z","modified":"2026-06-09T02:01:15Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:40:22.540562Z"}],"nvd":[{"id":"CVE-2026-45292","description":"opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.","status":"published","published":"2026-05-28T17:16:32.06Z","modified":"2026-09-10T13:20:17.357Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-45292","title":"opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation","description":"opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.","status":"published","published":"2026-05-28T16:37:29.49Z","modified":"2026-10-28T11:11:13.136834666Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:05.172514Z"},{"id":"GHSA-rcgg-9c38-7xpx","title":"OpenTelemetry Java SDK has Unbounded Memory Allocation in W3C Baggage Propagation","description":"## Overview\n\nA vulnerability affects the baggage propagation implementation in\n`opentelemetry-api` and `opentelemetry-extension-trace-propagators`. Parsing oversized baggage\ncauses unbounded memory allocation and CPU consumption. Because baggage is automatically\nre-injected into every outgoing request, the effect can fan out to downstream services that\nnever received the original malicious request.\n\n## Technical Details\n\n- `W3CBaggagePropagator` did not enforce any limit on the total size or entry count of the\n  `baggage` header. The parser iterated character-by-character through the entire value\n  regardless of length.\n- `JaegerPropagator` and `OtTracePropagator` had the same gap in their respective baggage\n  extraction paths.\n- The W3C Baggage specification recommends a maximum of 8,192 bytes and 180 entries; none of\n  these limits were enforced.\n\n## Impact\n\nThe practical availability impact for most deployments is limited. Every major Java HTTP server\nenforces its own header size limit (Tomcat, Jetty, Netty, Vert.x, and gRPC-Java all default to\n8 KiB), constraining what an external attacker can deliver before the application is reached.\nThe risk is higher when transport-layer limits are absent — e.g., a compromised internal service\ncommunicating over a non-HTTP or custom transport.\n\n## Remediation\n\nUpdate to version 1.62.0 or later ([#8380](https://github.com/open-telemetry/opentelemetry-java/pull/8380)).\nThe fix enforces limits consistent with the W3C Baggage specification at the propagator level:\n\n- Maximum total baggage size: 8,192 bytes across all `baggage` header values\n- Maximum number of entries: 64\n\nHeaders that would exceed either limit are dropped at the point the limit is reached;\nalready-extracted valid entries are retained.\n\n## Workarounds\n\nEnsure HTTP header size limits are configured at the server or gateway level. Most Java HTTP\nservers enforce an 8 KiB header limit by default, which mitigates external attack vectors\nindependently of this fix.\n\n## References\n\n- [W3C Baggage Specification §Limits](https://www.w3.org/TR/baggage/#limits)","status":"published","published":"2026-05-14T16:36:04Z","modified":"2026-06-09T02:15:07.364273115Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:46:55.877614Z"},{"id":"RHLW-2026-b13520fac3ab7893","title":"Lightwell Security Advisory: opentelemetry-api 1.25.0.rhlw-00002","description":"Red Hat Lightwell has released io.opentelemetry:opentelemetry-api 1.25.0.rhlw-00002 with a backported security fix.\n\nCVE-2026-45292: opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation\n\nThis patched artifact is a drop-in replacement for io.opentelemetry:opentelemetry-api 1.25.0 from Maven Central.","status":"published","published":"2026-10-16T12:34:34Z","modified":"2026-10-27T08:45:03.080030694Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHLW-2026-c5d9dda1cba52009","title":"Lightwell Security Advisory: opentelemetry-api 1.28.0.rhlw-00002","description":"Red Hat Lightwell has released io.opentelemetry:opentelemetry-api 1.28.0.rhlw-00002 with a backported security fix.\n\nCVE-2026-45292: opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation\n\nThis patched artifact is a drop-in replacement for io.opentelemetry:opentelemetry-api 1.28.0 from Maven Central.","status":"published","published":"2026-10-16T12:33:11Z","modified":"2026-10-29T14:30:09.039694953Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"ROOT-APP-MAVEN-CVE-2026-45292","title":"CVE-2026-45292 in io.opentelemetry:opentelemetry-api - Patched by Root","description":"Root has patched CVE-2026-45292 in the io.opentelemetry:opentelemetry-api package for Root:Maven. Multiple fixed versions available.","status":"published","published":"2026-08-06T08:02:12Z","modified":"2026-08-09T10:15:11.585580845Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:27.066589Z"},{"id":"CLSA-2026-1792053312","title":"TuxCare security update for io.opentelemetry (1 CVE)","description":"TuxCare rebuilt 2 io.opentelemetry packages to address 1 CVE. Fixed in 1.29.0-tuxcare.1.","status":"published","published":"2026-10-15T08:35:12Z","modified":"2026-11-02T19:46:28.454514428Z","updated_at":"2026-11-02T20:29:06.487335Z"}]}}