CVE-2026-45279— Nextcloud: Limited path traversal via template API if using `{lang}` in config
Possible ATT&CK Techniques 1AI
T1105 · Ingress Tool TransferAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nextcloud | security-advisories | >= 31.0.0, < 31.0.14 | affected |
>= 32.0.0, < 32.0.4 | affected |
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I. Basic Information for CVE-2026-45279
Vulnerability Information
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Vulnerability Title
Nextcloud: Limited path traversal via template API if using `{lang}` in config
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| nextcloud | security-advisories | >= 31.0.0, < 31.0.14 | - |
II. Public POCs for CVE-2026-45279
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-45279 (1)
Same Patch Batch · nextcloud · 2026-06-01 · 26 CVEs total
| CVE-2026-45545 | 8.2 HIGH | Nextcloud: SQL Injection in Column Type Parameter Allows Arbitrary SQL Execution |
| CVE-2026-45281 | 8.1 HIGH | Nextcloud: Cross-Account Calendar Takeover via Unauthorized Group-Member-Set Update |
| CVE-2026-45156 | 8.1 HIGH | Nextcloud: Authentication Bypass in ID4me handling via Missing JWT Signature Verification |
| CVE-2026-45722 | 7.1 HIGH | Nextcloud: Tables app allows limited SQLi in ORDER BY with malicious sort order argument f |
| CVE-2026-45810 | 6.8 MEDIUM | Nextcloud: Propfind requests for file comments allowed to load comments for other files |
| CVE-2026-45275 | 6.5 MEDIUM | Nextcloud: Authorization bypass in approval feature allows unauthorized file sharing with |
| CVE-2026-45282 | 6.5 MEDIUM | Nextcloud: Logged-in user bypasses share password and download restrictions on Text attach |
| CVE-2026-45267 | 6.5 MEDIUM | Nextcloud: Missing permission check for from submissions |
| CVE-2026-45285 | 6.4 MEDIUM | Nextcloud: Hidden Public Link creation when sharing to a Team External Member |
| CVE-2026-45283 | 6.3 MEDIUM | Nextcloud: Files Lock app allows users to lock and unlock files of other users |
| CVE-2026-45157 | 6.3 MEDIUM | Nextcloud: Valid share tokens allow to access tempory upload files of share owner |
| CVE-2026-45690 | 5.9 MEDIUM | Nextcloud: Two-Factor Authentication Bypass via Pending Session Token Replay |
| CVE-2026-45691 | 5.9 MEDIUM | Nextcloud: Bypass of second factor authentication on DAV endpoints |
| CVE-2026-45543 | 5.3 MEDIUM | Nextcloud: Deleting a Forms collaborator share leaves uploaded response files accessible t |
| CVE-2026-45153 | 4.6 MEDIUM | Nextcloud: PIN bypass in PassCodeActivity via back button |
| CVE-2026-45284 | 4.6 MEDIUM | Nextcloud: Wrong condition in the User OIDC app's LdapService allowed deleted LDAP users t |
| CVE-2026-45264 | 4.3 MEDIUM | Nextcloud: ACL Rename Permission Bypass in Team Folders Allows Unauthorized File Renames |
| CVE-2026-45286 | 4.3 MEDIUM | Nextcloud: Calendar app leaked user identifiers via attendee suggestion endpoint |
| CVE-2026-45544 | 4.3 MEDIUM | Nextcloud: Information Disclosure of view filter metdata via Broken Sensitive Data Masking |
| CVE-2026-45159 | 3.5 LOW | Nextcloud: Files drop share links for end-to-end encrypted folders allowed to drop files i |
Showing top 20 of 26 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: security-advisories
- CVE-2026-45810
Nextcloud: Propfind requests for file comments allowed to lo - CVE-2026-45722
Nextcloud: Tables app allows limited SQLi in ORDER BY with m - CVE-2026-45691
Nextcloud: Bypass of second factor authentication on DAV end - CVE-2026-45690
Nextcloud: Two-Factor Authentication Bypass via Pending Sess - CVE-2026-45545
Nextcloud: SQL Injection in Column Type Parameter Allows Arb
Same vendor: nextcloud
- CVE-2026-45810
Nextcloud: Propfind requests for file comments allowed to lo - CVE-2026-45722
Nextcloud: Tables app allows limited SQLi in ORDER BY with m - CVE-2026-45691
Nextcloud: Bypass of second factor authentication on DAV end - CVE-2026-45690
Nextcloud: Two-Factor Authentication Bypass via Pending Sess - CVE-2026-45545
Nextcloud: SQL Injection in Column Type Parameter Allows Arb
Same weakness: CWE-22
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Banana Slides 0.4.0 Path Traversal via generate_image() in a - CVE-2026-43624
F5-TTS 1.1.20 Path Traversal via finetune_gradio.py create_d - CVE-2026-10278
ishayoyo excel-mcp read_file/write_file index.ts path traver - CVE-2026-45727
CloakBrowser: Unauthenticated path traversal via fingerprint - CVE-2026-42679
WordPress Classified Listing plugin <= 5.3.8 - Arbitrary Fil
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