GO-2026-6905
Panic on negative member size in Reader.Read in github.com/blakesmith/ar
GO-2026-6905 is a vulnerability with no CVSS score yet in github.com/blakesmith/ar, published November 5, 2026. No source lists public exploit code. No source names a fixed version.
- Severity
- UnratedNo CVSS score yet
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Reader.Next parses the 10-byte decimal size field of an archive member header with strconv.ParseInt without rejecting negative values. A header with a negative size leaves the reader with a negative remaining byte count, causing the subsequent call to Reader.Read to panic with a slice bounds out of range error when slicing the caller's buffer.
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/blakesmith/arGo | All versions | None known |
What each source reports
OSVNo score
Panic on negative member size in Reader.Read in github.com/blakesmith/ar
Reader.Next parses the 10-byte decimal size field of an archive member header with strconv.ParseInt without rejecting negative values. A header with a negative size leaves the reader with a negative remaining byte count, causing the subsequent call to Reader.Read to panic with a slice bounds out of range error when slicing the caller's buffer.
- Record
GO-2026-6905- Updated
- 2026-11-06
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.