CVE-2024-9277
mediumpriority · track · 26EPSS 0.010 · 61 %ileEUUSEPSS · scored 2026-10-27
A vulnerability classified as problematic was found in Langflow up to 1.0.18. Affected by this vulnerability is an unknown functionality of the file \src\backend\base\langflow\interface\utils.py of the component HTTP POST Request Handler. The manipulation of the argument remaining_text leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.2–6.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-355v-2rjx-fpx7Inefficient Regular Expression Complexity in langflow2024-09-27ghsa · osvUS
A vulnerability classified as problematic was found in Langflow up to 1.0.18. Affected by this vulnerability is an unknown functionality of the file \src\backend\base\langflow\interface\utils.py of the component HTTP POST Request Handler. The manipulation of the argument remaining_text leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- PYSEC-2026-1521Inefficient Regular Expression Complexity in langflow2026-07-07vendor · osvUS
A vulnerability classified as problematic was found in Langflow up to 1.0.18. Affected by this vulnerability is an unknown functionality of the file \src\backend\base\langflow\interface\utils.py of the component HTTP POST Request Handler. The manipulation of the argument remaining_text leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-9277/cnnvd
- https://github.com/langflow-ai/langflow/releases/tag/v1.0.18.dev5Patchcnnvd
- https://rumbling-slice-eb0.notion.site/Remote-Redos-in-cnnvd
- https://vuldb.com/?ctiid.278659cnnvd
- https://vuldb.com/?id.278659cnnvd
- https://vuldb.com/?submit.410043cnnvd
- https://rumbling-slice-eb0.notion.site/Remote-Redos-in-https-github-com-langflow-ai-langflow-067159ced0d5494e91b06071384969c4?pvs=4enisa_euvd
- https://vuldb.com/?ctiid.278659enisa_euvd
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