CVE-2026-41677General(rust-openssl_project / rust-openssl)

LOWCVSS 9.1 · CRITICAL

Signal is active with 1 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

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-125CWE-1284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

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

  • rust-openssl

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-23); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Products
rust-openssl

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-23: 1Mentions · 2026-04-24: 1Technical Details · 2026-04-24: 104-2304-24
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-231
General1
2026-04-241
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-41677 rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length retu… https://www.cve.org/CVERecord?id=CVE-2026-41677

    Post summary

    The text announces CVE-2026-41677, indicating a length‑validation issue in rust‑openssl *_from_pem_callback APIs, with no evidence of exploitation or patch availability.

    00000120
    57.2K followersView on X
  • DailyCVE@dailycve
    General

    🔵 Rust-OpenSSL, Out-Of-Bounds Read, #CVE-2026-41677 (Low Severity) https://dailycve.com/rust-openssl-out-of-bounds-read-cve-2026-41677-low-severity/

    Post summary

    A tweet merely references CVE-2026-41677, noting an out‑of‑bounds read in Rust‑OpenSSL and a low severity rating, and links to a daily CVE page without additional details.

    0000034
    183 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apprust-openssl_projectrust-openssl-rust-

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