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| Vulnerability ID | VCID-ptk1-n6zn-9bbn |
| Aliases |
CVE-2026-41901
GHSA-c9ph-gxww-7744 |
| Summary | Thymeleaf is a server-side Java template engine for web and standalone environments. Prior to 3.1.5.RELEASE, a security bypass vulnerability exists in the expression execution mechanisms of Thymeleaf. Although the library provides mechanisms to avoid the execution of potentially dangerous expressions in some specific sandboxed (restricted) contexts, it fails to properly neutralize specific constructs that allow this kind of expressions to be executed. If an application developer passes to the template engine unsanitized variables that contain such expressions, and these values are used in sandboxed contexts inside the templates, these expressions can be executed achieving Server-Side Template Injection (SSTI). This vulnerability is fixed in 3.1.5.RELEASE. |
| Status | Published |
| Exploitability | None |
| Weighted Severity | None |
| Risk | None |
| Affected and Fixed Packages | Package Details |
| System | Score | Found at |
|---|---|---|
| epss | 0.00104 | https://api.first.org/data/v1/epss?cve=CVE-2026-41901 |
| cvssv3.1 | 9.0 | https://github.com/thymeleaf/thymeleaf |
| generic_textual | CRITICAL | https://github.com/thymeleaf/thymeleaf |
| cvssv3.1 | 9 | https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744 |
| cvssv3.1 | 9.0 | https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744 |
| generic_textual | CRITICAL | https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744 |
| ssvc | Track | https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744 |
| cvssv3.1 | 9.0 | https://nvd.nist.gov/vuln/detail/CVE-2026-41901 |
| generic_textual | CRITICAL | https://nvd.nist.gov/vuln/detail/CVE-2026-41901 |
| Reference id | Reference type | URL |
|---|---|---|
| https://api.first.org/data/v1/epss?cve=CVE-2026-41901 | ||
| https://github.com/thymeleaf/thymeleaf | ||
| https://nvd.nist.gov/vuln/detail/CVE-2026-41901 | ||
| GHSA-c9ph-gxww-7744 | https://github.com/advisories/GHSA-c9ph-gxww-7744 | |
| GHSA-c9ph-gxww-7744 | https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744 |
| 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 | 0.27842 |
| EPSS Score | 0.00104 |
| Published At | June 11, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-06-11T16:51:18.960834+00:00 | Vulnrichment | Import | https://github.com/cisagov/vulnrichment/blob/develop/2026/41xxx/CVE-2026-41901.json | 38.6.0 |