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CVE-2026-48709· NVD / CVE Program· CNA GitHub_M

OliveTin: ValidateArgumentType API Endpoint Missing Authentication Allows Action and Argument Enumeration

OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, The ValidateArgumentType RPC endpoint in service/internal/api/api.go does not perform any authentication or authorization checks. Unlike all other data-returning API endpoints, it does not call auth.UserFromApiCall or checkDashboardAccess. When AuthRequireGuestsToLogin is enabled (the security-conscious configuration), this endpoint remains accessible to unauthenticated users and can be used as an oracle to enumerate valid action binding IDs and their argument configurations. This issue has been fixed in version 3000.13.0.

LowCVSS 3.7 · v3.1—No exploit Fix available
Published
Jun 15, 2026
Updated
Jun 24, 2026
EPSS
0.4% · 33th percentile
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Report tools

JSON

Action score

14

Monitor

Low priority for now.

CVSS
14 / 40 · 3.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
3.7
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • OliveTin OliveTin

    • < 3000.13.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Gogithub.com/OliveTin/OliveTinbefore 0.0.0-20260521230847-a3865704c8540.0.0-20260521230847-a3865704c854

Same product

olivetin: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-27626OliveTin vulnerable to OS Command Injection via `password` argument type and webhook JSON extraction bypasses shell safety checks
    39Monitor
  • CVE-2026-30223OliveTin: JWT Audience Validation Bypass in Local Key and HMAC Modes
    35Monitor
  • CVE-2026-31817OliveTin's unsafe parsing of UniqueTrackingId can be used to write files
    34Monitor
  • CVE-2026-67437OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)
    30Monitor
  • CVE-2026-48708OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination
    30Monitor
  • CVE-2026-28790OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
OliveTin OliveTin3000.13.0 · descriptionVendor (CNA)
Go:github.com/OliveTin/OliveTin0.0.0-20260521230847-a3865704c854Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-3181797 days apartOliveTin's unsafe parsing of UniqueTrackingId can be used to write files
    34Monitor
  • CVE-2026-487080 days apartOliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination
    30Monitor
  • CVE-2026-6743844 days apartOliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check
    26Monitor
  • CVE-2026-30225101 days apartOliveTin: RestartAction always runs actions as guest
    17Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-862 · Missing Authorization

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

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We use this product, ask for help

Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records