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CVE-2026-41901

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 te
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c0cdd4b8ba3d240aa426b0cb4bcd42457067daa59a78285863b05b1892333485
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-917","description":"CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"thymeleaf","vendor":"thymeleaf","versions":[{"status":"affected","version":"< 3.1.5.RELEASE"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-917","description":"CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/problemTypes/1/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744","tags":["x_refsource_CONFIRM"],"url":"https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2494d02ff1670a822f6ddcfd29e908b4979d4d29575bd49a207c2c3f11d7e581 · sha256:bc0b3065a92d1469… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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