- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 15/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The github.com/blakesmith/ar Go library can be made to panic when it reads a specially crafted archive, because a negative member size in the header is not rejected. An attacker who can supply such an archive can crash a program that processes it, but the facts provided do not say what attacks are possible beyond this.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original 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.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure?/25Unknown. No advisory context yet
- Reach10/20Affects Go packages
- Severity?/10Unknown. No CVSS score or vendor rating
- No patch5/5No patch listed yet
What would change the score
- Would score about 70 if added to CISA KEV
- Would score about 65 if CISA's SSVC rates exploitation active
- Would score about 37 if advisories confirm default setups are exposed
Timeline
- Advisory published
- Record last updated
- First seen by cve.now
Affected versions
- github.com/blakesmith/arGo
All versions
Evidence 2
- Report
- Repository
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about GO-2026-6905
Is GO-2026-6905 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by GO-2026-6905?
github.com/blakesmith/ar (Go): all versions.Source: cve.now feed data