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| Vulnerability ID | VCID-jjfq-a5mj-k3dr |
| Aliases |
CVE-2026-42354
GHSA-rcmw-7mc7-3rj7 |
| Summary | Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on the same Sentry instance. The victim email address must be known in order to exploit this vulnerability. This issue has been patched in version 26.4.1. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 9.0 |
| Risk | 4.5 |
| Affected and Fixed Packages | Package Details |
| Reference id | Reference type | URL |
|---|---|---|
| https://api.first.org/data/v1/epss?cve=CVE-2026-42354 | ||
| https://github.com/getsentry/sentry | ||
| https://nvd.nist.gov/vuln/detail/CVE-2026-42354 | ||
| 0c67558ae7fe08738912d4c5233b53ead048da3b | https://github.com/getsentry/sentry/commit/0c67558ae7fe08738912d4c5233b53ead048da3b | |
| 113720 | https://github.com/getsentry/sentry/pull/113720 | |
| 26.4.1 | https://github.com/getsentry/sentry/releases/tag/26.4.1 | |
| GHSA-rcmw-7mc7-3rj7 | https://github.com/advisories/GHSA-rcmw-7mc7-3rj7 | |
| GHSA-rcmw-7mc7-3rj7 | https://github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-3rj7 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.01927 |
| EPSS Score | 0.00012 |
| Published At | June 11, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-06-11T16:44:20.633801+00:00 | Vulnrichment | Import | https://github.com/cisagov/vulnrichment/blob/develop/2026/42xxx/CVE-2026-42354.json | 38.6.0 |