Home/CVE/corydolphin/flask-cors is vulnerable to log injection when the log level is set to debug. An attacker can inject fake lo
CVE

CVE-2024-1681

corydolphin/flask-cors is vulnerable to log injection when the log level is set to debug. An attacker can inject fake lo

corydolphin/flask-cors is vulnerable to log injection when the log level is set to debug. An attacker can inject fake log entries into the log file by sending a specially crafted GET request containing a CRLF sequence in the request path. This vulnerability allows attackers to corrupt log files, potentially covering tracks of other attacks, confusing log post-processing tools, and forging log entries.

The issue is due to improper output neutralization for logs.

MEDIUM · CVSS 5.3 EPSS 0.00179
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-117Improper Output Neutralization for Logs
▤

Affected Products & Versions

1
corydolphin flask-corsall versions
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI flask-cors MODERATE fixed in 4.0.1
⚠

Public Exploits & PoCs

1
pochuntr.com · 25a7a0ba-9fa2-4777-acb6-03e5539bb644huntr.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@huntr.dev
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Apr 2024 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
usnUSN-7612-1
suse-csafopenSUSE-SU-2024:14293-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2025/05/msg00049.html
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