Common Weakness Enumeration
CWE-323
AllowedReusing a Nonce, Key Pair in Encryption
Abstraction: Base · Status: Incomplete
Nonces should be used for the present occasion and only once.
87 vulnerabilities reference this CWE, most recent first.
CVE-2026-25998 (GCVE-0-2026-25998)
Vulnerability from cvelistv5 – Published: 2026-02-19 15:51 – Updated: 2026-02-20 15:42
VLAI
EPSS
VEX
Title
strongMan vulnerable to private credential recovery due to key and counter reuse
Summary
strongMan is a management interface for strongSwan, an OpenSource IPsec-based VPN. When storing credentials in the database (private keys, EAP secrets), strongMan encrypts the corresponding database fields. So far it used AES in CTR mode with a global database key. Together with an initialization vector (IV), a key stream is generated to encrypt the data in the database fields. But because strongMan did not generate individual IVs, every database field was encrypted using the same key stream. An attacker that has access to the database can use this to recover the encrypted credentials. In particular, because certificates, which have to be considered public information, are also encrypted using the same mechanism, an attacker can directly recover a large chunk of the key stream, which allows them to decrypt basically all other secrets especially ECDSA private keys and EAP secrets, which are usually a lot shorter. Version 0.2.0 fixes the issue by switching to AES-GCM-SIV encryption with a random nonce and an individually derived encryption key, using HKDF, for each encrypted value. Database migrations are provided to automatically re-encrypt all credentials.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-20 15:32 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/strongswan/strongMan/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongswan | strongMan |
Affected:
< 0.2.0
|
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CVE-2026-21383 (GCVE-0-2026-21383)
Vulnerability from cvelistv5 – Published: 2026-07-06 20:09 – Updated: 2026-07-08 03:56
VLAI
EPSS
VEX
Title
Reusing a Nonce, Key Pair in Encryption in HLOS
Summary
Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 00:00 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
FastConnect 6900
Affected: FastConnect 7800 Affected: LeMans_AU_LGIT Affected: LeMansAU Affected: Pandeiro Affected: QAM8255P Affected: QAM8397P Affected: QAM8797P Affected: QAMSRV1H Affected: QAMSRV1M Affected: QCA6595AU Affected: QCA6696 Affected: QCA6698AQ Affected: QCA6797AQ Affected: QCA8695AU Affected: QDU1000 Affected: QDU1110 Affected: QDU1210 Affected: QDX1010 Affected: QDX1011 Affected: QLN1083BD Affected: QLN1086BD Affected: QPA1083BD Affected: QPA1086BD Affected: Qualcomm Dragonwing X100 Accelerator Card Affected: QXM1093 Affected: QXM1094 Affected: QXM1095 Affected: QXM1096 Affected: SA7255P Affected: SA7775P Affected: SA8255P Affected: SA8620P Affected: SA8770P Affected: SA9000P Affected: SAR1165P Affected: SAR2130P Affected: Snapdragon AR1 Gen 1 Platform Affected: Snapdragon AR1+ Gen 1 Platform Affected: SRV1H Affected: SRV1M Affected: SXR2230P Affected: SXR2250P Affected: WCD9380 Affected: WCD9385 Affected: WCN3950 Affected: WCN7860 Affected: WCN7861 Affected: WSA8830 Affected: WSA8832 Affected: WSA8835 Affected: XRV7209 Affected: XRV9209 |
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CVE-2026-17578 (GCVE-0-2026-17578)
Vulnerability from cvelistv5 – Published: 2026-08-05 10:20 – Updated: 2026-08-05 13:07
VLAI
EPSS
VEX
Title
Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement
Summary
Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.
If a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.
New versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:07 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://developer.konghq.com/event-gateway/changelog/ | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kong | Kong Event Gateway |
Affected:
1.0.0 , < 1.1.2
(semver)
Affected: 1.2.0 , < 1.2.1 (semver) |
Date Public
2026-08-05 17:00
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CVE-2026-13602 (GCVE-0-2026-13602)
Vulnerability from cvelistv5 – Published: 2026-07-01 13:45 – Updated: 2026-07-01 15:27
VLAI
EPSS
VEX
Title
Session takeover vulnerability
Summary
We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user in the backend and access any data:
*
The payment integration plugins Stripe (included in the core system), pretix-mollie, pretix-oppwa, pretix-bitpay, pretix-payone, pretix-secuconnect, pretix-sofort, and pretix-saferpay
contain a code path that is intended for the transport of session
parameters from a tab with isolated cookies (e.g. in the pretix widget)
to a new tab. For this purpose, a set of session parameters is
cryptographically signed and then passed to the new tab as a URL
parameter. The plugins perform no further validation of the session
parameters, other than the cryptographic signature being valid. This is
fixed with the releases issued today by strictly validating that no
session parameters outside of the scope of the respective plugin may be
set.
*
An unrelated feature in the core system is used to generate redirect links that obfuscate any Referer
headers for outgoing links to prevent leakage of secrets in URLs. This
redirect page also requires cryptographically signed parameters.
Unfortunately, it uses the same key and salt for the signature as the
previously mentioned feature in the payment integration plugins. A
motivated attacker with access to at least one event in the backend can
trick the system into cryptographically signing arbitrary content using
specially crafted links. In combination with the previous issue, the
attacker could use this to set and modify arbitrary parameters on their
user session by injecting the signed parameters into the feature of the
payment providers. This is fixed with the releases issued today by using
different salts for the signature for each plugin and feature.
*
A third, unrelated feature in the core system is used for admin users
to act on behalf of another user, mostly for debugging purposes. With
being able to insert arbitrary parameters into a session, an attacker
can abuse this feature to change their session from their actual user to
any user in the system by guessing a valid user ID. This is fixed with
the release today by requiring unguessable information to be contained
in the session of the user to switch to.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 15:26 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://pretix.eu/about/en/blog/20260701-release-… | vendor-advisory |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| pretix | pretix |
Affected:
4.14.0 , < 2026.3.5
(python)
Affected: 2026.4.0 , < 2026.4.5 (python) Affected: 2026.5.0 , < 2026.5.3 (python) |
|
| pretix | pretix-mollie |
Affected:
0 , < 2.5.7
(python)
|
|
| pretix | pretix-oppwa |
Affected:
0 , < 1.4.4
(python)
|
|
| pretix | pretix-bitpay |
Affected:
0 , < 1.5.3
(python)
|
|
| pretix | pretix-payone |
Affected:
0 , < 1.4.3
(python)
|
|
| pretix | pretix-secuconnect |
Affected:
0 , < 1.0.4
(python)
|
|
| pretix | pretix-sofort |
Affected:
0 , < 1.4.2
(python)
|
|
| pretix | pretix-saferpay |
Affected:
0 , < 1.6.3
(python)
|
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CVE-2026-12205 (GCVE-0-2026-12205)
Vulnerability from cvelistv5 – Published: 2026-06-15 21:57 – Updated: 2026-06-16 16:13
VLAI
EPSS
VEX
Title
Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery
Summary
Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery.
Crypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it.
The first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical "r".
Keys used to sign more than once with an affected version should be considered compromised.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 16:13 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TIMLEGGE | Crypt::DSA |
Affected:
0 , < 1.21
(custom)
|
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CVE-2026-5446 (GCVE-0-2026-5446)
Vulnerability from cvelistv5 – Published: 2026-04-09 21:02 – Updated: 2026-04-10 18:11
VLAI
EPSS
VEX
Title
wolfSSL ARIA-GCM TLS 1.2/DTLS 1.2 GCM nonce reuse
Summary
In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wc_AriaEncrypt is stateless and passes the caller-supplied IV verbatim to the MagicCrypto SDK with no internal counter, and because the explicit IV is zero-initialized at session setup and never incremented in non-FIPS builds. This vulnerability affects wolfSSL builds configured with --enable-aria and the proprietary MagicCrypto SDK (a non-default, opt-in configuration required for Korean regulatory deployments). AES-GCM is not affected because wc_AesGcmEncrypt_ex maintains an internal invocation counter independently of the call-site guard.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 18:11 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
1 reference
Impacted products
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CVE-2026-3559 (GCVE-0-2026-3559)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:36 – Updated: 2026-03-16 20:19
VLAI
EPSS
VEX
Title
Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability
Summary
Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the configuration of the SRP authentication mechanism in the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the use of a static nonce value. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28451.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-16 20:19 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3099 (GCVE-0-2026-3099)
Vulnerability from cvelistv5 – Published: 2026-03-12 13:53 – Updated: 2026-05-01 15:31
VLAI
EPSS
VEX
Title
Libsoup: libsoup: authentication bypass via digest authentication replay attack
Summary
A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count (nc) attribute. This vulnerability allows a remote attacker to capture a single valid authentication header and replay it repeatedly. Consequently, the attacker can bypass authentication and gain unauthorized access to protected resources, impersonating the legitimate user.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 17:44 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-3099 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2442232 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/libsoup/-/issues/495 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-02-24 01:01
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CVE-2025-64767 (GCVE-0-2025-64767)
Vulnerability from cvelistv5 – Published: 2025-11-21 18:47 – Updated: 2025-11-21 19:01
VLAI
EPSS
VEX
Title
hpke-js reuses AEAD nonces
Summary
hpke-js is a Hybrid Public Key Encryption (HPKE) module built on top of Web Cryptography API. Prior to version 1.7.5, the public SenderContext Seal() API has a race condition which allows for the same AEAD nonce to be re-used for multiple Seal() calls. This can lead to complete loss of Confidentiality and Integrity of the produced messages. This issue has been patched in version 1.7.5.
Severity
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-21 18:59 UTC
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/dajiaji/hpke-js/security/advis… | x_refsource_CONFIRM |
| https://github.com/dajiaji/hpke-js/commit/94a767c… | x_refsource_MISC |
| https://github.com/dajiaji/hpke-js/blob/b7fd3592c… | x_refsource_MISC |
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CVE-2025-61739 (GCVE-0-2025-61739)
Vulnerability from cvelistv5 – Published: 2025-12-22 10:19 – Updated: 2025-12-22 13:09
VLAI
EPSS
VEX
Title
Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG reusing a nonce, key pair in encryption
Summary
Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-22 13:09 UTC
CWE
- CWE-323 - Reusing a Nonce, Key pair in encryption
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Johnson Controls | IQ Panels2, 2+, IQHub, IQPanel 4, PowerG |
Affected:
IQPanel2 , ≤ 2
(custom)
Affected: IQ Panels 2+ , ≤ 2+ (custom) Affected: IQHub (custom) Affected: IQPanel 4 , ≤ 4.6.0 (custom) |
Date Public
2025-12-16 10:09
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"version": "IQ Panels 2+",
"versionType": "custom"
},
{
"status": "affected",
"version": "IQHub",
"versionType": "custom"
},
{
"lessThanOrEqual": "4.6.0",
"status": "affected",
"version": "IQPanel 4",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "James Chambers of NCC Group"
},
{
"lang": "en",
"type": "finder",
"value": "Sultan Qasim Khan of NCC Group"
}
],
"datePublic": "2025-12-16T10:09:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u0026nbsp;Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets."
}
],
"value": "Due to Nonce reuse, attackers can perform reply attack or decrypt captured packets."
}
],
"impacts": [
{
"capecId": "CAPEC-216",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-216 Communication Channel Manipulation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-323",
"description": "CWE-323 Reusing a Nonce, Key pair in encryption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-22T10:19:34.183Z",
"orgId": "7281d04a-a537-43df-bfb4-fa4110af9d01",
"shortName": "jci"
},
"references": [
{
"url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"
},
{
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-350-02"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "a. Update IQ Panel 4\u2019s to version 4.6.1/4.6.1i\u003cbr\u003eb. Devices that support PowerG+ should use PowerG v53.05 or later. \u003cbr\u003ec. During the installation or enrollment of PowerG+ devices, enter the PIN code in the PIN Code field on the sensor enrollment screen. For additional security, Johnson Controls recommends only authorized company personnel or integrators be present during the pairing process\u003cbr\u003ed. Replace all End-of-Life Products (IQ Panel 2, IQ Panel 2+, IQ Hub) with the latest IQ Panel 4 using firmware version 4.6.1 or greater\u003cbr\u003e\u003cbr\u003e"
}
],
"value": "a. Update IQ Panel 4\u2019s to version 4.6.1/4.6.1i\nb. Devices that support PowerG+ should use PowerG v53.05 or later. \nc. During the installation or enrollment of PowerG+ devices, enter the PIN code in the PIN Code field on the sensor enrollment screen. For additional security, Johnson Controls recommends only authorized company personnel or integrators be present during the pairing process\nd. Replace all End-of-Life Products (IQ Panel 2, IQ Panel 2+, IQ Hub) with the latest IQ Panel 4 using firmware version 4.6.1 or greater"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Johnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG reusing a nonce, key pair in encryption",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "7281d04a-a537-43df-bfb4-fa4110af9d01",
"assignerShortName": "jci",
"cveId": "CVE-2025-61739",
"datePublished": "2025-12-22T10:19:34.183Z",
"dateReserved": "2025-09-30T15:51:17.096Z",
"dateUpdated": "2025-12-22T13:09:17.628Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Implementation
Refuse to reuse nonce values.
Mitigation
Implementation
Use techniques such as requiring incrementing, time based and/or challenge response to assure uniqueness of nonces.
No CAPEC attack patterns related to this CWE.