Answer in brief
CVE-2026-123975 records a High severity (CVSS 8.7) vulnerability in Grid Community Toolkit globus-gss-assist before 12.9 Pre-Authentication Heap Out-of-Bounds Write. The current sources do not mark it as known exploited. The current feed maps Grid Community Forum/globus-gss-assist (generic), Grid Community Forum/Grid Community Toolkit (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Grid Community Forum/globus-gss-assist (generic), Grid Community Forum/Grid Community Toolkit (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grid Community Forum/globus-gss-assistgeneric | >=0 <12.9 | 12.9 |
| Grid Community Forum/Grid Community Toolkitgeneric | >=0 <6.2.20261111 | 6.2.20261111 |
Published upstream
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 13, 2026
Grid Community Toolkit before 6.2.20261111 (globus-gss-assist before 12.9) contains a heap out-of-bounds write in globus_gss_assist_token_get_fd() triggered by SSLv2 record lengths below 3. Remote unauthenticated clients can send a crafted GSI handshake record to services like globus-gatekeeper and myproxy to corrupt heap memory and crash the service.
Quoted source text, attributed separately from HOL analysis.