CVE-2023-39349Network attack vector

Privilege escalation via bearer-token session authentication

Published Aug 7, 2023 · Updated Oct 4, 2024

Improper access control in Sentry 22.1.0 through 23.7.1 allows remote authenticated users to obtain higher-scope API tokens. ApiTokensEndpoint used session authentication for bearer-token requests and returned every token belonging to the authenticated user without enforcing the presented token's scopes. Possession of any user token, even one with no scopes, exposes stronger tokens that authorize otherwise forbidden requests.

CVSS severity8.1
High
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Sentry 22.1.0 through 23.7.1 allows remote authenticated users to obtain higher-scope API tokens. ApiTokensEndpoint used session authentication for bearer-token requests and returned every token belonging to the authenticated user without enforcing the presented token's scopes. Possession of any user token, even one with no scopes, exposes stronger tokens that authorize otherwise forbidden requests.

The record

CVE
CVE-2023-39349
Published
Aug 7, 2023
Updated
Oct 4, 2024
Vendor
Sentry
Product
Sentry
Classifications
CWE-284, CWE-287, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 4, 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=>= 22.1.0, < 23.7.2
  2. Affected versionversion=22.1.0 <23.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sentry · Sentryversion=>= 22.1.0, < 23.7.2; version=22.1.0 <23.7.2

Published CVSS scores

8.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-284Improper Access Control
CWE-287Improper Authentication
T1528Steal Application Access Token

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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