How to fix or mitigate EUVD-2025-19236?

Within 24 hours: Identify all applications and services using URIs.jl (versions <1.6.0) and HTTP.jl (versions <1.10.17) across your Julia environments. Within 7 days: Update URIs.jl to version 1.6.0 or later and HTTP.jl to version 1.10.17 or later in all development, staging, and production environments; test thoroughly before production deployment. Within 30 days: Conduct code review of any custom URI parsing or HTTP header construction logic to ensure user input is properly escaped before use.

EUVD-2025-19236

Q: What is the CVSS score of EUVD-2025-19236?

EUVD-2025-19236 has a CVSS 4.0 base score of 7.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

| CVE-2025-52479 HIGH

Improper Neutralization of CRLF Sequences ('CRLF Injection') (CWE-93)

2025-06-25 security-advisories@github.com

Code Injection

7.7

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:36 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

1.10.17

EUVD ID Assigned

Mar 15, 2026 - 23:19 euvd

EUVD-2025-19236

Analysis Generated

Mar 15, 2026 - 23:19 vuln.today

CVE Published

Jun 25, 2025 - 16:15 nvd

HIGH 7.7

DescriptionGitHub Advisory

HTTP.jl provides HTTP client and server functionality for Julia, and URIs.jl parses and works with Uniform Resource Identifiers (URIs). URIs.jl prior to version 1.6.0 and HTTP.jl prior to version 1.10.17 allows the construction of URIs containing CR/LF characters. If user input was not otherwise escaped or protected, this can lead to a CRLF injection attack. Users of HTTP.jl should upgrade immediately to HTTP.jl v1.10.17, and users of URIs.jl should upgrade immediately to URIs.jl v1.6.0. The check for valid URIs is now in the URI.jl package, and the latest version of HTTP.jl incorporates that fix. As a workaround, manually validate any URIs before passing them on to functions in this package.

AnalysisAI

CVE-2025-52479 is a CRLF injection vulnerability in URIs.jl (<1.6.0) and HTTP.jl (<1.10.17) that allows attackers to construct malicious URIs containing carriage return and line feed characters. If user input is not properly escaped, this can enable CRLF injection attacks to manipulate HTTP headers or protocol boundaries. The vulnerability has a CVSS score of 7.7 (high integrity impact) and affects Julia ecosystem users; patch versions are available and should be deployed immediately.

Technical ContextAI

URIs.jl is a Julia package responsible for parsing and validating Uniform Resource Identifiers according to RFC standards. HTTP.jl is a Julia package providing HTTP client and server implementations that depends on URIs.jl for URI handling. The root cause (CWE-93: Improper Neutralization of CRLF Sequences in HTTP Headers) stems from insufficient validation of URI components before use in HTTP contexts. CR (\r, 0x0D) and LF (\n, 0x0A) characters are special in HTTP and can be used to inject additional headers or split requests when not properly sanitized. The vulnerability exists in the URI parsing layer (URIs.jl), with the fix backported to HTTP.jl v1.10.17 to ensure defense-in-depth. Affected CPE scope includes Julia package ecosystem: pkg:julia/URIs.jl and pkg:julia/HTTP.jl.

RemediationAI

Upgrade URIs.jl to version 1.6.0 or later; command: julia> using Pkg; Pkg.update("URIs"); priority: Immediate Upgrade HTTP.jl to version 1.10.17 or later; command: julia> using Pkg; Pkg.update("HTTP"); priority: Immediate Workaround: Implement manual URI validation before passing to HTTP.jl/URIs.jl functions; details: Validate that user-supplied URIs do not contain CR (\r, 0x0D) or LF (\n, 0x0A) characters. Use regex pattern: reject if /[\r\n]/ matches.; code_example: if occursin(r"[\r\n]", user_uri); error("Invalid URI"); end; priority: Temporary mitigation for unpatched systems Defense-in-Depth: Implement HTTP response header validation; details: Even with patched libraries, validate headers in HTTP responses to detect unexpected header injection; priority: Recommended supplementary control