Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
NVD description
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the public_key_from_numbers (or EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() and load_pem_public_key() functions do not verify that the point belongs to the expected prime-order subgroup of the curve. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification (ECDSA) and shared key negotiation (ECDH). When the victim computes the shared secret as S = [victim_private_key]P via ECDH, this leaks information about victim_private_key mod (small_subgroup_order). For curves with cofactor > 1, this reveals the least significant bits of the private key. When these weak public keys are used in ECDSA , it's easy to forge signatures on the small subgroup. Only SECT curves are impacted by this. This vulnerability is fixed in 46.0.5.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-02-10 | 2 | Disclosure2 |
| 2026-02-11 | 1 | Patch1 |
| 2026-02-12 | 4 | Disclosure3General1 |
| 2026-02-13 | 2 | Disclosure1False Positive1 |
| 2026-02-14 | 2 | Patch2 |
| 2026-02-19 | 1 | Patch1 |
| 2026-03-17 | 1 | Disclosure1 |
| 2026-03-22 | 1 | Disclosure1 |
| 2026-05-21 | 1 | Disclosure1 |
| 2026-07-09 | 1 | Patch1 |
🔒 3. Comprehensive Security Update (Ongoing) Focus: Protection against CVE-2026-26007 Updating all security dependencies Strengthening protection against DoS #pinetwork #picoin https://t.co/THoh9KdUeg
Post summary
The post announces a security update that patches CVE-2026-26007 by updating all dependencies to strengthen DoS protection.
We found a CVSS 8.2 flaw CVE-2026-26007 in pyca/cryptography — the most widely used cryptolib in Python. https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/ reported it as "full private key disclosure" Let's clarify: the vulnerability only leaks the least significant bits (e.g., 3 bits when cofactor = 8 ).
Post summary
The message reports CVE‑2026‑26007 in pyca/cryptography with a CVSS score of 8.2, notes prior claims of full key leakage, but clarifies that only the least significant bits are exposed, effectively debunking the severity claim.
CVE-2026-26007 fixed in PyCA cryptography 46.0.5 https://www.openwall.com/lists/oss-security/2026/02/10/4 An attacker could create a malicious public key that reveals portions of your private key when using certain uncommon elliptic curves (binary curves)
Post summary
CVE-2026-26007, which allows malicious public keys on binary elliptic curves to leak parts of private keys, is fixed in PyCA cryptography 46.0.5.
We recently published research on a cryptographic validation flaw in the widely used Python cryptography library (CVE-2026-26007). The package is extremely popular, with over 206 million downloads last week and 806 million downloads last month! https://hcs-team.com/blog/cve-2026-26007/ https://t.co/ZjSasnTciw
Post summary
Researchers announced the discovery of a cryptographic validation flaw (CVE-2026-26007) in the popular Python cryptography library, highlighting its widespread use.
🚨 ثغرة في مكتبة Python تسمح بتسريب Private Keys اكتشفوا ثغرة خطيرة CVE-2026-26007 في مكتبة cryptography الخاصة بـ Python. هذه الثغرة ذات تصنيف CVSS 8.2 قد تسمح للمهاجمين بالوصول إلى المفاتيح الخاصة، مما يعرض البيانات الحساسة للخطر. التأثير كبير على التطبيقات التي تعتمد على هذه المكتبة لحماية اتصالاتها وبياناتها. 💡 الحماية: - حدث مكتبة cryptography لأحدث إصدار متوفر. - راجع سجلات الوصول والمراقبة بحثًا عن أي نشاط مشبوه. - قم بتطبيق مبدأ أقل الامتيازات صلاحيات على الوصول للمفاتيح الخاصة. 🔗 https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/ #الأمن_السيبراني #Python #Vulnerability #CVE
Post summary
A new CVE-2026-26007 vulnerability in Python’s cryptography library can leak private keys; users should update to the latest version to mitigate the risk.
Wrote about CVE-2026-26007. A missing subgroup validation check in pyca/cryptography let legacy curves leak private keys during ECDH. https://dev.to/vaultkeepr_xyz/cve-2026-26007-subgroup-confinement-attack-in-pycacryptography-7ne
Post summary
Highlights a subgroup validation flaw in pyca/cryptography that allows legacy curves to leak private keys during ECDH, with a link to a blog post for further details.
🔒 3. Comprehensive Security Update (Ongoing) Focus: Protection against CVE-2026-26007 Updating all security dependencies Strengthening protection against DoS #pinetwork #picoin https://t.co/hcpU7AfLvG
Post summary
A comprehensive security update is announced to protect against CVE‑2026‑26007 by updating all security dependencies and strengthening DoS defenses.
CVE-2026-26007: Pythonの暗号化の脆弱性 (CVSS 8.2) により秘密鍵が漏洩する CVE-2026-26007: Python Cryptography Flaw (CVSS 8.2) Leaks Private Keys #DailyCyberSecurity (Feb 12) https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/
Post summary
The post announces the discovery of CVE‑2026‑26007, a Python cryptography flaw that leaks private keys, with a CVSS score of 8.2, but provides no PoC, exploit code, patch information, or evidence of active exploitation.
>RT Pythonのcryptographyパッケージは脆弱性（CVE-2026-26007）見てヒヤッとしたけど、今回の脆弱性の影響はSECTの楕円曲線だけで、普段使うのはSECPだから思ったより影響なさそうで安心した
Post summary
The tweet notes the CVE-2026-26007 vulnerability in Python's cryptography package, indicating it only impacts SECT elliptic curves and not the commonly used SECP curves, without mentioning any PoC, exploit, or patch.
CVE-2026-26007 cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the public_key_from_numbers (or EllipticCurve… https://www.cve.org/CVERecord?id=CVE-2026-26007
Post summary
A brief disclosure of CVE-2026-26007 in the Python cryptography package, noting that versions prior to 46.0.5 are vulnerable and implying a patch via that release.
New critical CVEs in 'cryptography' (CVE-2024-12797, CVE-2026-26007, CVE-2026-34073, July 8) expose TLS/DNS to MITM & forgery. Immediate patching vital for data privacy & integrity in transit. #Cybersecurity #News
Post summary
The post announces three critical CVEs in the cryptography library that enable TLS/DNS man‑in‑the‑middle attacks and forgery, urging immediate patching to protect data privacy and integrity.
#VulnerabilityReport #CVE202626007 CVE-2026-26007: Python Cryptography Flaw (CVSS 8.2) Leaks Private Keys https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/?utm_source=dlvr.it&utm_medium=twitter
Post summary
The tweet announces CVE-2026-26007, a Python cryptography flaw with CVSS 8.2 that leaks private keys, but provides no details on PoCs, exploits, or patches.
@polkapheen ECC isn't expiring—it's just bleeding from small-subgroup attacks like CVE-2026-26007 in pyca/cryptography. Always validate points belong to the prime-order subgroup, or watch your keys leak.
Post summary
The tweet highlights CVE-2026-26007, a small‑subgroup attack in pyca/cryptography, and advises validating ECC points to mitigate key leakage.
CVE-2026-26007: Python Cryptography Flaw (CVSS 8.2) Leaks Private Keys https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/
Post summary
The text announces CVE-2026-26007 as a Python cryptography flaw with CVSS 8.2 that can leak private keys, but provides no evidence of exploitation, PoC, or patch.
CVE-2026-26007: Python Cryptography Flaw (CVSS 8.2) Leaks Private Keys https://securityonline.info/cve-2026-26007-python-cryptography-flaw-cvss-8-2-leaks-private-keys/
Post summary
The text announces CVE-2026-26007, a Python cryptography flaw with CVSS 8.2 that leaks private keys, without providing a PoC, exploit code, or active exploitation details.
CVE-2026-26007: Living on the Edge: Subgroup Attacks in Python Cryptography A high-severity flaw in the standard Python `cryptography` library allows attackers to recover private keys when using binary elliptic curves. By exploiting missing subgroup v... https://cvereports.com/reports/CVE-2026-26007
Post summary
The report discloses a high‑severity flaw in Python’s cryptography library that allows private‑key recovery due to missing subgroup checks when using binary elliptic curves.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | cryptography.io | cryptography | - | python | - |