CVE-2022-0577Network attack vector

Cookie disclosure via cross-domain redirect retention

Published Mar 2, 2022 · Updated Aug 2, 2024

Information disclosure in Scrapy before 2.6.1 allows remote authenticated users to obtain manually supplied cookies through cross-domain redirects. RedirectMiddleware cloned a redirected Request with its cookies and Cookie header intact without comparing the source and destination network locations. Exposure requires a crawler to send manually defined cookies and follow an attacker-influenced redirect, and the consequence is limited to disclosure of those cookies.

CVSS severity8.8
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Scrapy before 2.6.1 allows remote authenticated users to obtain manually supplied cookies through cross-domain redirects. RedirectMiddleware cloned a redirected Request with its cookies and Cookie header intact without comparing the source and destination network locations. Exposure requires a crawler to send manually defined cookies and follow an attacker-influenced redirect, and the consequence is limited to disclosure of those cookies.

The record

CVE
CVE-2022-0577
Published
Mar 2, 2022
Updated
Aug 2, 2024
Vendor
Scrapy
Product
Scrapy
Classifications
CWE-863, CWE-200, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <2.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Scrapy · Scrapyversion=unspecified <2.6.1

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
8.8huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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