CVE-2023-28117Network attack vector

Session-cookie disclosure via custom-name redaction failure

Published Mar 22, 2023 · Updated Feb 25, 2025

Cookie exposure in the Django integration of Sentry Python SDK before 1.14.0 allows attackers with Sentry issue access to read session cookies. The Django request cookie extractor returned request.COOKIES unchanged, so custom session and CSRF cookie values entered event payloads. Exposure requires sendDefaultPII, custom cookie names, and no matching Sentry-side scrubbing; disclosed cookies enable application impersonation or privilege escalation.

CVSS severity7.6
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cookie exposure in the Django integration of Sentry Python SDK before 1.14.0 allows attackers with Sentry issue access to read session cookies. The Django request cookie extractor returned request.COOKIES unchanged, so custom session and CSRF cookie values entered event payloads. Exposure requires sendDefaultPII, custom cookie names, and no matching Sentry-side scrubbing; disclosed cookies enable application impersonation or privilege escalation.

The record

CVE
CVE-2023-28117
Published
Mar 22, 2023
Updated
Feb 25, 2025
Vendor
Sentry
Product
Sentry Python SDK
Classifications
CWE-209, CWE-201, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 1.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sentry · Sentry Python SDKversion=< 1.14.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
CWE-201Insertion of Sensitive Information Into Sent Data
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo