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CVE-2020-35681

23
FAUCET Score

CVE-2020-35681 is a high-severity information disclosure vulnerability affecting Django Channels 3.x before 3.0.3. The legacy channels.http.AsgiHandler class failed to properly isolate request scopes, potentially leading to sensitive data leakage, including session identifiers, to incorrect clients. With a CVSS score of 7.4, this vulnerability has a network attack vector and high impact on confidentiality and availability, though it requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 3.0.3CPE matchmatch criteria
cpe:2.3:a:djangoproject:channels:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0266 is in the 42nd percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: channelsFixed in: 3.0.3

Vendor Advisories (2)

pipGHSA-v542-8q9x-cffchigh

Django Channels leakage of session identifiers using legacy AsgiHandler

Mar 19, 2021
redhatCVE-2020-35681Moderate

django-channels: potential leakage of session identifiers using legacy AsgiHandler

Dec 28, 2020

References

channels.readthedocs.io / en/stable/releases/3.0.3.html
ExploitVendor Advisory
channels.readthedocs.io / en/stable/releases/index.html
Release NotesVendor Advisory
github.com / django/channels/releases
Third Party Advisory