# CVE-2026-81872: OpenTelemetry-Go: BatchProcessor can busy-spin when export buffer is full

CVE-2026-81872 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-81872, released September 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-81872
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0038
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 16, 2026
- Weakness: Uncontrolled Resource Consumption
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81872

## Description

go.opentelemetry.io/otel/sdk/log: OpenTelemetry-Go: Denial of Service via attacker-driven log emission

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | distribution opensuse-leap 16.0 | 3.1.1-160000.4.1 | [OPENSUSE-SU-2026:22010-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22010-1.md) | Oct 1, 2026 |
| Linux | distribution sles 16.0 | 3.1.1-160000.4.1 | [SUSE-SU-2026:23990-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23990-1.md) | Oct 1, 2026 |
| Linux | golang-opentelemetry-otel Debian 14 | 1.46.0-2 | [DEBIAN-CVE-2026-81872](https://patchblox.com/security/data/fix/linux/debian-cve-2026-81872.md) | Sep 16, 2026 |
| Linux | helm opensuse-leap 16.0 | 4.3.0-160000.1.1 | [OPENSUSE-SU-2026:21983-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21983-1.md) | Sep 30, 2026 |
| Linux | helm sles 15.6 | 3.22.1-150000.1.104.1 | [SUSE-SU-2026:5119-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5119-1.md) | Nov 7, 2026 |
| Linux | helm sles 15.7 | 3.22.1-150000.1.104.1 | [SUSE-SU-2026:5119-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5119-1.md) | Nov 7, 2026 |
| Linux | helm sles 16.0 | 4.3.0-160000.1.1 | [SUSE-SU-2026:23984-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23984-1.md) | Sep 30, 2026 |

---

Data as of 2026-11-11T01:43:54Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.