CVE-2026-22779 Vulnerability Analysis & Exploit Details

CVE-2026-22779
Vulnerability Scoring

5.3
/10
Significant Risk

Security assessments indicate that CVE-2026-22779 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-22779 Details

Status: Analyzed

Last updated: 🕞 22 Jan 2026, 15:39 UTC
Originally published on: 🕔 14 Jan 2026, 17:16 UTC

Time between publication and last update: 7 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2026-22779 Vulnerability Summary

CVE-2026-22779: BlackSheep is an asynchronous web framework to build event based web applications with Python. Prior to 2.4.6, the HTTP Client implementation in BlackSheep is vulnerable to CRLF injection. Missing headers validation makes it possible for an attacker to modify the HTTP requests (e.g. insert a new header) or even create a new HTTP request. Exploitation requires developers to pass unsanitized user input directly into headers.The server part is not affected because BlackSheep delegates to an underlying ASGI server handling of response headers. This vulnerability is fixed in 2.4.6.

Assessing the Risk of CVE-2026-22779

Access Complexity Graph

The exploitability of CVE-2026-22779 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-22779

With low attack complexity and no required privileges, CVE-2026-22779 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-22779, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-22779, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-22779 has no significant impact on data confidentiality.
  • Integrity: Low
    Exploiting CVE-2026-22779 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-22779 does not impact system availability.

CVE-2026-22779 References

External References

CWE Common Weakness Enumeration

NVD-CWE-Other

Vulnerable Configurations

  • cpe:2.3:a:neoteroi:blacksheep:0.2.7:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.2.7:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.2.8:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.2.8:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.2.9:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.2.9:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.3.0:-:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.3.0:-:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.3.0:beta:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.3.0:beta:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.3.1:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.3.1:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:0.3.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:0.3.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.4:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.4:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.5:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.5:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.6:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.6:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.7:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.7:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.8:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.8:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.0.9:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.0.9:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.1.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.1.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.1:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.1:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.3:-:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.3:-:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.3:beta:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.3:beta:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.4:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.4:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.5:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.5:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.6:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.6:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.7:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.7:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.8:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.8:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.9:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.9:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.10:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.10:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.11:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.11:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.12:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.12:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.13:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.13:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.14:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.14:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.15:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.15:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.16:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.16:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.17:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.17:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.18:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.18:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.19:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.19:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:1.2.20:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:1.2.20:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:-:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:-:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha0:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha0:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha1:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha1:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha10:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha10:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha11:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha11:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha12:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha12:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha2:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha2:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha3:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha3:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha4:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha4:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha5:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha5:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha6:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha6:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha7:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha7:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha8:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha8:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha9:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.0:alpha9:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.1:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.1:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.3:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.3:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.4:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.4:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.5:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.5:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.6:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.6:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.7:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.7:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.0.8:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.0.8:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.1.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.1.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.2.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.2.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.3.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.3.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.3.1:-:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.3.1:-:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.3.1:alpha1:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.3.1:alpha1:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.3.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.3.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.0:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.0:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.1:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.1:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.2:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.2:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.3:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.3:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.4:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.4:*:*:*:*:python:*:*
  • cpe:2.3:a:neoteroi:blacksheep:2.4.5:*:*:*:*:python:*:*
    cpe:2.3:a:neoteroi:blacksheep:2.4.5:*:*:*:*:python:*:*

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