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CVE-2026-49833— DSpace: Path Traversal possible in LDN message generation

Quick assessment

Affected
DSpace DSpace
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DSpace 是一款开源软件，是一个提供对数字资源持久化访问功能的仓库应用。在 DSpace 的以下版本范围内存在路径遍历漏洞： 8.0-rc1 至 8.4 之前 9.0-rc1 至 9.3 之前 10-rc1 至 10.0 之前 该漏洞可通过 DSpace 中的 COAR Notify / LDN 服务触发路径遍历。要利用该漏洞，攻击者必须已拥有 DSpace 管理员凭据。 具体而言，当读取用于生成 LDN 消息的“入站模式”或“模板”的文件输入流时，LDN 类未检查路径遍历，也未将模板限制在已知的基准路径内。这

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-49833

Vulnerability Information
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Vulnerability Title
DSpace: Path Traversal possible in LDN message generation
Source: CVE Program / CVE List V5
Vulnerability Description
DSpace open source software is a repository application which provides durable access to digital resources. From versions 8.0-rc1 to before 8.4, 9.0-rc1 to before 9.3, and 10-rc1 to before 10.0, a path traversal vulnerability is possible via the COAR Notify / LDN service in DSpace. The attacker MUST already have DSpace administrator credentials in order to perform the attack. When reading a file input stream of an "inbound pattern" / "template", used to generate an LDN message, the LDN class does not check for path traversal or restrict the templates to a known base path. This could allow an untrusted file from elsewhere in the file system (e.g. an export log, a bitstream path, a temporary file) to be read and interpreted as an Apache Velocity template. This issue has been patched in versions 8.4, 9.3, and 10.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
DSpace DSpace >= 8.0-rc1, < 8.4 -

II. Public POCs for CVE-2026-49833

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III. Intelligence Information for CVE-2026-49833

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Other References for CVE-2026-49833 (3)

Same Patch Batch · DSpace · 2026-09-02 · 4 CVEs total

CVE-2026-49832 8.0 HIGH DSpace: Remote Code Execution (RCE) possible in Velocity Templates used by LDN
CVE-2026-49831 5.5 MEDIUM DSpace: Curation Task Reporter output path is not restricted to trusted directories (Path
CVE-2026-49830 4.4 MEDIUM DSpace: ORE resource URI does not validate scheme for non-web resources

IV. Related Vulnerabilities

Same product: DSpace
Same vendor: DSpace
Same weakness: CWE-22

V. Comments for CVE-2026-49833

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