CVE-2026-45287
OpenTelemetry-Go's Schema ParseFile leaks file descriptors on each parse
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.0.17, `go.opentelemetry.io/otel/schema/v1.0` and `go.opentelemetry.io/otel/schema/v1.1` leaks one file descriptor on each successful `ParseFile` call. `ParseFile` opens the schema file and passes it to `Parse` without closing it; repeated parsing in a long-running process can exhaust the process file descriptor limit and cause denial of service. Exploitation depends on a consuming application exposing repeated schema parsing to an attacker-controlled path. Version 0.0.17 contains a patch for the issue.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | Low2.1 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| NVDNVD · Analyzed | 4.0 | Low2.1 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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 |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Weakness
Affected products
open-telemetry · go.opentelemetry.io/otel/schema/v1.1
- affected < 0.0.17
open-telemetry · go.opentelemetry.io/otel/schema/v1.0
- affected < 0.0.17
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogo.opentelemetry.io/otel/schemaGHSA-995v-fvrw-c78m (opens in a new tab)
- Gogo.opentelemetry.io/otel/schema/v1.0GHSA-995v-fvrw-c78m (opens in a new tab)
- Gogo.opentelemetry.io/otel/schema/v1.1GHSA-995v-fvrw-c78m (opens in a new tab)
References (3)
- https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684 (opens in a new tab)x_refsource_MISC
- https://github.com/open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-995v-fvrw-c78m (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-45287)Record last updated .