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Public proof of conceptFix available

CVE-2024-26144

A public proof of concept exists; no exploitation attested.

  • Published2024-02-27
  • Fixed in7.1.0 · 7.0.8.1 · 6.1.7.7
  • WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Certain proxies may cache the Set-Cookie, leading to an information leak. The vulnerability is fixed in 7.0.8.1 and 6.1.7.7.

Timeline

dates in UTC
  1. 2024-02-2716:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-26144?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-26144?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV · CISA-ADP
Ruby on Rails
BranchAffectedFixed in
7.x≥ 7.0.0, < 7.1.07.1.0
7.0≥ 7.0.0, < 7.0.8.17.0.8.1
6.1≥ 5.2.0, < 6.1.7.76.1.7.7
rails
BranchAffectedFixed in
7.0≥ 7.0.0, < 7.0.97.0.9
6.1≥ 5.2.0, < 6.1.86.1.8
Rails
BranchAffectedFixed in
7.1≥ 5.2.0, < 7.1.07.1.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Ruby on Rails to 7.1.0 · 7.0.8.1 · 6.1.7.7

Advisories and patches

Detection

read 2026-10-23 19:24 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedusutani/study-turbolinks-linkgmo-ierae/CVE-2024-26144-test
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-08-09
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.15.3read 2026-10-23
  • NVDCVSS 3.15.3read 2026-10-23
  • CNAweakness (CWE)CWE-200read 2026-10-23
  • FIRST EPSSEPSS score1.1 %2026-10-23
  • PoC-in-GitHubproof of concept2read 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published
2024-02-27
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2024-26144?

Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Certain proxies may cache the Set-Cookie, leading to an information leak. The vulnerability is fixed in 7.0.8.1 and 6.1.7.7.

Is CVE-2024-26144 actively exploited?

Active exploitation of CVE-2024-26144 has not been confirmed. Its EPSS score was 1.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-26144?

CVE-2024-26144 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

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