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TI-2026-22627 Aliases CVE-2026-28342GHSA-pc8g-78pf-4xrp

OliveTin: Unauthenticated Denial of Service via Memory Exhaustion in PasswordHash API Endpoint

Priority HIGH 72CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.10.2, the PasswordHash API endpoint allows unauthenticated users to trigger excessive memory allocation by sending concurrent password hashing requests. By issuing multiple parallel requests, an attacker can exhaust available container memory, leading to service degradation or complete denial of service (DoS). The issue occurs because the endpoint performs computationally and memory-intensive hashing operations without request throttling, authentication requirements, or resource limits. This issue has been patched in version 3000.10.2.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0075 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed OliveTin (OliveTin): 3000.10.2github.com/OliveTin/OliveTin (Go): 0.0.0-20260227002407-2eb5f0ba79d4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OliveTinOliveTinbefore 3000.10.23000.10.2Patch availableCNA
—github.com/OliveTin/OliveTin (Go)before 0.0.0-20260227002407-2eb5f0ba79d40.0.0-20260227002407-2eb5f0ba79d4Patch availableGHSA-pc8g-78pf-4xrp
  • OliveTin VendorOliveTin Affected before 3000.10.2 Fixed in 3000.10.2 Patch available CNA
  • github.com/OliveTin/OliveTin (Go) Vendor— Affected before 0.0.0-20260227002407-2eb5f0ba79d4 Fixed in 0.0.0-20260227002407-2eb5f0ba79d4 Patch available GHSA-pc8g-78pf-4xrp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:olivetin:olivetin:*:*:*:*:*:*:*:*before 3000.10.2VulnerableOliveTin
  • cpe:2.3:a:olivetin:olivetin:*:*:*:*:*:*:*:* Versions before 3000.10.2 Vulnerable ·OliveTin

Remediation

  • Fix · CNA OliveTin (OliveTin) Fixed in 3000.10.2
  • Fix · GHSA-pc8g-78pf-4xrp github.com/OliveTin/OliveTin (Go) Fixed in 0.0.0-20260227002407-2eb5f0ba79d4 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28342
  2. 2026-10-03 Alias added: GHSA-pc8g-78pf-4xrp

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2026-23456 OliveTin: JWT Audience Validation Bypass in Local Key and HMAC Modes CVSS 3.1HIGH 8.8
  • TI-2026-22008 OS command injection in OliveTin CVSS 3.1CRITICAL 10.0
  • TI-2026-22985 OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login CVSS 3.1HIGH 7.5
  • TI-2026-22984 OliveTin: Unauthenticated DoS via concurrent map writes in OAuth2 state handling CVSS 3.1HIGH 7.5
  • TI-2026-24370 OliveTin's unsafe parsing of UniqueTrackingId can be used to write files CVSS 3.1HIGH 8.5
  • TI-2025-32274 OS Command Injection in Olivetin 2025.4.22 Custom Themes via the ParseRequestURI function… CVSS 3.1MEDIUM 6.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences