VulnSocial

CVE-2026-43823Disclosure(apple / swift-crypto)

LOWCVSS 7.5 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

apple CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-415

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • swift-crypto

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
apple
Products
swift-crypto

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-23: 2Technical Details · 2026-07-23: 207-23
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-43823 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 … https://www.cve.org/CVERecord?id=CVE-2026-43823 ----- Traducción: CVE-2026-43823 Al … http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-43823, highlighting a double‑free bug in OpenSSL when creating an RSA public key from DER or PEM data.

    0000028
    94 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-43823 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 … https://www.cve.org/CVERecord?id=CVE-2026-43823

    Post summary

    The post provides a technical disclosure of a double‑free vulnerability in RSA key handling, without mentioning a PoC, exploit, or patch.

    000001.1K
    57.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appappleswift-crypto-swift-

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