CVE-2024-26146

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.00% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-02-28 23:28Z2 YR AGO

Last updated

2025-02-13 17:41Z1 YR AGO

Reserved

2024-02-14

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-1333Inefficient Regular Expression ComplexityBase

Data version

5.1

Document digest

2e0c1d2abaa23cc468ca46daee092d387095566e8572f4b4a6613e4f50381f78

• github.comhttps://github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8fx_refsource_CONFIRM
• github.comhttps://github.com/rack/rack/commit/30b8e39a578b25d4bdcc082c1c52c6f164b59716x_refsource_MISC
• github.comhttps://github.com/rack/rack/commit/6c5d90bdcec0949f7ba06db62fb740dab394b582x_refsource_MISC
• github.comhttps://github.com/rack/rack/commit/a227cd793778c7c3a827d32808058571569cda6fx_refsource_MISC
• github.comhttps://github.com/rack/rack/commit/e4c117749ba24a66f8ec5a08eddf68deeb425ccdx_refsource_MISC
• discuss.rubyonrails.orghttps://discuss.rubyonrails.org/t/possible-denial-of-service-vulnerability-in-rack-header-parsing/84942x_refsource_MISC
• github.comhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2024-26146.ymlx_refsource_MISC
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/04/msg00022.html
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240510-0006/