CVE-2026-2681Disclosure

LOWCVSS 5.3 · MEDIUM

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

A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blst_sha256_bcopy assembly routine, occurs due to a missing zero-length guard. A remote attacker can exploit this by providing a zero-length salt parameter to key generation functions, such as blst_keygen_v5(), if the application exposes this functionality. Successful exploitation leads to memory corruption and immediate process termination, resulting in a denial-of-service (DoS) condition.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2026-2681

Full discourse1 post

CVE@CVEnew232d
Disclosure
CVE-2026-2681 A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blst_sha256_bcopy assembly routine, occurs due to … https://www.cve.org/CVERecord?id=CVE-2026-2681
Post summary
The statement announces the discovery of a CVE-2026-2681 out‑of‑bounds stack write flaw in the blst cryptographic library, offering basic technical details but no PoC, exploit code, or patch information.
00000357
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