CVE-2026-39883 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-39883HIGH

open-telemetry opentelemetry-go — OpenTelemetry-Go has an incomplete fix for CVE-2026-24051: BSD kenv command not using absolute path enables PATH hijacking

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   H   N   L   N   H   H   H    7.3   .0024   14.8     —

AFFECTED
  Product           Versions               Fixed
  opentelemetry-go  >= 1.15.0, < 1.43.0 –  —

TIMELINE
  Apr 7   Reserved by GitHub_M
  Apr 8   Published (CNA: GitHub_M)
  Aug 14  EXPLOIT PUBLISHED — CVE-2026-39883 (open-telemetry opentelemetry-go). Public exploit reference added.

CWE-426 · CNA: GitHub_M · CVSS v4.0 · 10 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 7, 2026	Reserved	Reserved by GitHub_M
April 8, 2026	Published	Published (CNA: GitHub_M)
August 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-39883 (open-telemetry opentelemetry-go). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
open-telemetry	opentelemetry-go	—	>= 1.15.0, < 1.43.0	—

Weaknesses

CWE-426

References (10)

http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0 [x_refsource_MISC]
https://access.redhat.com/errata/RHSA-2026:26254 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:26257 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:37387 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:54274 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:54286 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/security/cve/CVE-2026-39883 [vdb-entry, x_refsource_REDHAT]
https://bugzilla.redhat.com/show_bug.cgi?id=2456718 [issue-tracking, x_refsource_REDHAT]
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx [x_refsource_CONFIRM]
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39883.json [x_sadp-csaf-vex]

Authoritative record: CVE-2026-39883 at cve.org

Vendors: open-telemetry

Weaknesses: CWE-426

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-39883 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.