CVE-2025-68148Public exploitNetwork attack vector

Feed access denial via proxy-agnostic Retry-After cache

Published Dec 26, 2025 · Updated Dec 26, 2025

Denial of service in FreshRSS 1.27.0 through 1.27.1 allows remote authenticated users to block feed access through a proxy. FreshRSS_http_Util keys persisted Retry-After state only by feed domain, so a proxied HTTP 429 response with an attacker-set delay suppresses direct and other users' fetches. A FreshRSS account with permission to add feeds and configure a proxy is required, and repeating the request across popular domains can interrupt feed updates for most users.

CVSS severity4.3
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in FreshRSS 1.27.0 through 1.27.1 allows remote authenticated users to block feed access through a proxy. FreshRSS_http_Util keys persisted Retry-After state only by feed domain, so a proxied HTTP 429 response with an attacker-set delay suppresses direct and other users' fetches. A FreshRSS account with permission to add feeds and configure a proxy is required, and repeating the request across popular domains can interrupt feed updates for most users.

The record

CVE
CVE-2025-68148
Published
Dec 26, 2025
Updated
Dec 26, 2025
Vendor
FreshRSS
Product
FreshRSS
Classifications
CWE-770, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.27.0, < 1.28.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FreshRSS · FreshRSSversion=>= 1.27.0, < 1.28.0

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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