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

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Summary

CVECVE-2026-48708
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-15 21:17:15 UTC
Updated2026-06-16 15:49:33 UTC
DescriptionOliveTin 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.003490000 probability, percentile 0.265870000 (date 2026-06-21)

Problem Types: CWE-362 | CWE-567 | CWE-362 CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | CWE-567 CWE-567: Unsynchronized Access to Shared Data in a Multithreaded Context

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OliveTin OliveTin affected < 3000.13.0 Not specified

References

ReferenceSourceLinkTags
github.com/OliveTin/OliveTin/security/advisories/GHSA-7fq5-7wr8-rjwj 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/OliveTin/OliveTin/releases/tag/3000.13.0 [email protected] github.com
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