Agent hang via blocking nonregular mapping open
Published Sep 11, 2026 · Updated Sep 11, 2026
Denial of service in OpenTelemetry eBPF Profiler 0.0.202527 and later before 0.0.202622 allows local users to halt ELF analysis. The processPIDEvents goroutine opens a process mapping through its filesystem root without first verifying that the target is a regular file, so a FIFO blocks openat2 indefinitely. Any unprivileged workload on a profiled Linux host can supply the mapping; the blocked goroutine stops analysis of new ELF files but does not expose or alter data.
Summary
What happened
Denial of service in OpenTelemetry eBPF Profiler 0.0.202527 and later before 0.0.202622 allows local users to halt ELF analysis. The processPIDEvents goroutine opens a process mapping through its filesystem root without first verifying that the target is a regular file, so a FIFO blocks openat2 indefinitely. Any unprivileged workload on a profiled Linux host can supply the mapping; the blocked goroutine stops analysis of new ELF files but does not expose or alter data.
The record
- CVE
- CVE-2026-48496
- Published
- Sep 11, 2026
- Updated
- Sep 11, 2026
- Vendor
- OpenTelemetry
- Product
- OpenTelemetry eBPF Profiler
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 11, 2026CVE publishedPublication date reported by the CVE source.
- Sep 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 0.0.202527, < 0.0.202622
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo