CVE-2026-26004Public exploitNetwork attack vector

Cross-organization event disclosure via unscoped group lookup

Published Mar 17, 2026 · Updated Mar 17, 2026

IDOR in Sentry before 26.1.0 allows remote authenticated users to read complete event data from other organizations. GroupEventJsonView passes a user-controlled group ID to get_group_with_redirect without the active organization, so resource ownership is not enforced. An account with event:read in any organization and a target group ID can disclose the target event JSON, but cannot alter it through this flaw.

CVSS severity6.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Sentry before 26.1.0 allows remote authenticated users to read complete event data from other organizations. GroupEventJsonView passes a user-controlled group ID to get_group_with_redirect without the active organization, so resource ownership is not enforced. An account with event:read in any organization and a target group ID can disclose the target event JSON, but cannot alter it through this flaw.

The record

CVE
CVE-2026-26004
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
Sentry
Product
Sentry
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 2026Record 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=< 26.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sentry · Sentryversion=< 26.1.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

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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