CVE-2019-3902
MEDIUM
5.1
CVSS Score
Published: April 22, 2019 at 03:29 PM UTC
Updated: June 17, 2026 at 02:35 AM UTC
3 products affected across 3 vendorsDebian LinuxEnterprise LinuxMercurial
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Severity
MEDIUM5.1
Exploit prediction
EPSS 1%
Description
A flaw was found in Mercurial before 4.9. It was possible to use symlinks and subrepositories to defeat Mercurial's path-checking logic and write files outside a repository.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 4.9
Affected range stops below 4.9, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (5)
x_refsource_CONFIRMIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/04/msg00024.htmlMailing Listx_refsource_MLIST
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.htmlx_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29CVSS
5.1MEDIUMredhat
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-22CWE-59
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