CVE-2026-40477

criticalPriorität · handeln · 90OT-Risiko · kritischEU KEV · CNWEPSS 0.009 · 58. PerzentilExploit · PoCEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
0.85% (58th) EPSS
CVSS 9 · critical
Is it mine?
9 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · nvd

EU KEVgemeldet von CNWgemeldet 2026-10-10gepatcht 2026-04-15

EPSS · bewertet 2026-10-26

Thymeleaf is a server-side Java template engine for web and standalone environments. Versions 3.1.3.RELEASE and prior contain a security bypass vulnerability in the expression execution mechanisms. Although the library provides mechanisms to prevent expression injection, it fails to properly restrict the scope of accessible objects, allowing specific potentially sensitive objects to be reached from within a template. If an application developer passes unvalidated user input directly to the template engine, an unauthenticated remote attacker can bypass the library's protections to achieve Server-Side Template Injection (SSTI). This issue has ben fixed in version 3.1.4.RELEASE.

01

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.1
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 8.5–9.1

v3.19criticalAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.1criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · security-advisories@github.comAusnutzbarkeit 2.2 · Auswirkung 6
v3.18.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HsecondaryAusnutzbarkeit 1.8 · Auswirkung 6
v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · OSV
02

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-1336USCWE-1336USCWE-1336USCWE-917USCWE-917USCWE-917US
04

Exploits (1)

Öffentlicher Proof-of-Concept- und Exploit-Code.

05

betroffene Produkte (9)

Betroffene Produkte und Versionsbereiche.

06

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

  • GHSA-r4v4-5mwr-2fwrImproper restriction of the scope of accessible objects in Thymeleaf expressions2026-04-15ghsa · osvUS

    ### Impact A security bypass vulnerability exists in the expression execution mechanisms of Thymeleaf up to and including 3.1.3.RELEASE. Although the library provides mechanisms to prevent expression injection, it fails to properly restrict the scope of accessible objects, allowing specific potentially sensitive objects to be reached from within a template. If an application developer passes unvalidated user input directly to the template engine, an unauthenticated remote attacker can bypass the library's protections to achieve Server-Side Template Injection (SSTI). ### Patches This has been fixed in Thymeleaf 3.1.4.RELEASE. ### Workarounds No workaround is available beyond ensuring applications do not pass unvalidated user input directly to the template engine. Upgrading to 3.1.4.RELEASE is strongly recommended in any case. ### Credits Thanks to Thomas Reburn (Praetorian) for responsible disclosure.

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auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bdunvdosvNVDCVE.orgMITRE
veröffentlicht 2026-04-17geändert 2026-10-26
09

Referenzen (8)

Externe Belege — Patches, Meldungen, Analysen.

scry

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