What’s Vulnerable › Vulnerabilities

CVE-2026-48708: OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-15 · updated 2026-06-24
• Weakness: CWE-362

Description

OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, the template engine uses a single shared text/template.Template instance (tpl package-level variable in service/internal/tpl/templates.go) across all goroutines. Every action execution calls tpl.Parse(source) followed by t.Execute() on this shared instance with no synchronization. When two or more actions execute concurrently (which is the normal case — each ExecRequest spawns a goroutine), a race condition occurs: one goroutine's Parse overwrites the template tree while another goroutine is calling Execute, causing cross-user command contamination, Go runtime panic, and incorrect command execution. This issue has been resolved in version 3000.13.0.

Affected products

• OliveTin: before 3000.13.0

References

• https://github.com/OliveTin/OliveTin/commit/d74da9314005954dd49fa20dabf272247bc76519
• https://github.com/OliveTin/OliveTin/releases/tag/3000.13.0
• https://github.com/OliveTin/OliveTin/security/advisories/GHSA-7fq5-7wr8-rjwj
• https://github.com/OliveTin/OliveTin/security/advisories/GHSA-7fq5-7wr8-rjwj

Get alerted when CVE-2026-48708 or the next vulnerability affects your stack