Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-43823

Quick assessment

Affected
Apple swift-crypto
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.

Apple swift-crypto是美国Apple公司开源的一个跨平台加密工具库。 Apple Swift Crypto 4.5.1之前版本存在安全漏洞，该漏洞源于在从DER或PEM字节初始化RSA公钥时，EVP_PKEY*被双重释放，可能导致未来内存分配时崩溃。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apple swift-crypto < 4.5.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-43823

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When initializing an RSA public key from DER or PEM bytes throws an error, the EVP_PKEY* is double-freed: first in the catch block, then in the deinit. This can lead to a crash on future memory allocations. This double-free manifests when BoringSSL cannot decode the public key from the bytes provided. This vulnerability is addressed in swift-crypto version 4.5.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apple Swift Crypto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple swift-crypto是美国Apple公司开源的一个跨平台加密工具库。 Apple Swift Crypto 4.5.1之前版本存在安全漏洞，该漏洞源于在从DER或PEM字节初始化RSA公钥时，EVP_PKEY*被双重释放，可能导致未来内存分配时崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apple swift-crypto 0 ~ 4.5.1 -

II. Public POCs for CVE-2026-43823

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-43823

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-43823 (1)

Same Patch Batch · Apple · 2026-07-23 · 3 CVEs total

CVE-2026-43820 Apple SwiftNIO SSL 安全漏洞
CVE-2026-64785 Apple swift-nio-http2 安全漏洞

IV. Related Vulnerabilities

Same vendor: Apple

V. Comments for CVE-2026-43823

No comments yet

Leave a comment