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TI-2026-70714 Aliases CVE-2026-108735GHSA-f5cv-wgfv-h2x2

Server-side request forgery in Miniflux via per-feed proxy URL

Priority MEDIUM 57CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Miniflux 2.3.0 through 2.3.3 contains a server-side request forgery flaw (CWE-918) in the per-feed proxy URL setting. An authenticated user can set a feed's proxy_url to a loopback or internal host, reaching internal addresses and probing internal ports. The attacker can also send proxy-style requests to internal services.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Miniflux 2.3.0 through 2.3.3 contains a server-side request forgery vulnerability that allows authenticated users to reach internal addresses by setting a feed's proxy_url. Attackers can point proxy_url at loopback or internal hosts, bypassing FETCHER_ALLOW_PRIVATE_NETWORKS checks to probe internal ports and send proxy-style requests to internal services.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00269 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
minifluxminiflux2.3.0 – 2.3.3—No fix listedCNA
  • miniflux Vendorminiflux Affected 2.3.0 – 2.3.3 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Miniflux.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108735
  2. 2026-10-11 Alias added: GHSA-f5cv-wgfv-h2x2
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: LOW → MEDIUM
  5. 2026-11-06 Affected versions changed · Red Hat
  6. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

Other 3

  • TI-2026-17586 Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources CVSS 3.1MEDIUM 6.5
  • TI-2025-41410 Miniflux 2 has an Open Redirect via protocol-relative `redirect_url` CVSS 4.0MEDIUM 5.3
  • TI-2026-39867 Miniflux 2: Open Redirect Bypass CVSS 4.0MEDIUM 5.1
  • TI-2023-12301 Unauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metrics CVSS 3.1HIGH 7.5
  • TI-2023-12302 Stored XSS in Miniflux when opening a broken image due to unescaped ServerError in proxy handler CVSS 3.1MEDIUM 5.4
  • TI-2025-22664 Stored XSS in Miniflux Media Proxy due to improper Content-Security-Policy configuration CVSS 4.0MEDIUM 4.8

Sources

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