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CWE-330

Use of Insufficiently Random Values

246 CVEs Avg CVSS 7.1 MITRE
49
CRITICAL
87
HIGH
98
MEDIUM
12
LOW
56
POC
0
KEV

Monthly

CVE-2026-81852 Aug 31, 02:29 LOW PATCH Monitor

AshAdmin shipped a compile-time constant string ('ash_admin-Ed55GFnX') as the default CSP nonce for inline script and style tags across all requests in versions 0.10.8 through 1.3.0, rendering nonce-based Content-Security-Policy enforcement completely ineffective for any application using the default configuration. Applications that adopted the documented default and explicitly allow-listed this published constant in their CSP script-src directive would have their CSP protection neutralized by any attacker able to inject HTML into an admin page. No active exploitation or public proof-of-concept has been identified; the CVSS 4.0 score of 2.1 reflects significant compound preconditions required for exploitation.

Code Injection Ash Admin
NVD GitHub VulDB
CVSS 4.0
2.1
EPSS
0.3%
CVE-2026-82555 Aug 30, 17:30 LOW POC Monitor

Predictable authentication token generation in TOTOLINK N600R firmware 4.3.0cu.7866_B20220506 exposes the router's web management interface to session token prediction attacks from the network. The loginAuth function in /web_cste/cgi-bin/cstecgi.cgi generates insufficiently random values (CWE-330), enabling unauthenticated remote attackers to predict valid session tokens and gain unauthorized access to router configuration data. A proof-of-concept exploit script (poc.py) is publicly available on GitHub, though high attack complexity limits practical exploitation to technically capable attackers.

Information Disclosure N600R
NVD VulDB GitHub
CVSS 4.0
2.9
EPSS
0.4%
CVE-2026-19485 Aug 26, 18:06 CRITICAL PATCH Act Now

Cross-tenant data exposure in Google Cloud Vertex AI Search for Commerce (versions prior to 2026-04-27) allowed an authenticated attacker who knew a victim's Google Cloud project number to read from and write to the Cloud Storage buckets used for BigQuery Import staging, because those bucket names were predictably derived rather than randomized. An attacker could reach another tenant's staged catalog data and import error logs, breaching data confidentiality and integrity across project boundaries. There is no public exploit identified at time of analysis, and Google fixed the issue server-side so no customer action is required.

Google Information Disclosure Vertex Ai Search For Commerce
NVD
CVSS 4.0
9.3
EPSS
0.2%
CVE-2026-56706 Aug 25, 01:30 MEDIUM PATCH This Month

Cryptographic failure in Adminer's CSRF token scheme before version 5.4.3 allows an attacker who observes any single valid token to recover the session secret with one XOR operation, then forge unlimited valid CSRF tokens indefinitely. The token format `(rand XOR secret):rand` transmits both XOR operands together, rendering the masking scheme arithmetically transparent; this flaw is compounded by approximately 20 bits of entropy in the underlying random value and PHP loose comparison in token verification. Successful exploitation permits CSRF attacks against authenticated Adminer sessions, enabling execution of arbitrary SQL queries including data exfiltration, unauthorized modification, and destructive operations. No public exploit has been identified at time of analysis.

PHP CSRF XSS Adminer
NVD GitHub
CVSS 4.0
6.1
EPSS
0.3%
CVE-2026-19906 Aug 15, 19:16 MEDIUM This Month

Insufficient entropy in API key generation for pkp/pkp-lib 3.3.0, 3.4.0, and 3.5.0 exposes generated API keys to brute-force prediction. The vulnerable code derived API keys using SHA1 of the current Unix timestamp (sha1(time())), which yields a deterministic, low-entropy value easily narrowed to a small candidate window if the approximate key-generation time is known or guessable. No public exploit or CISA KEV listing exists at time of analysis, but the upstream fix commit (529b5df) is publicly visible and the flaw is self-evident from the diff.

PHP Information Disclosure
NVD GitHub VulDB
CVSS 4.0
6.3
EPSS
0.3%
CVE-2026-18531 Aug 05, 16:04 MEDIUM PATCH This Month

Session data tampering in IBM Maximo Application Suite 9.0, 9.1, and 9.2 is possible because the application signs session tokens with a weak HMAC secret, classified under CWE-330 (Use of Insufficiently Random Values). A remote unauthenticated attacker who can derive or predict the HMAC signing key may forge or modify session tokens, undermining session integrity across affected deployments. No public exploit code has been identified, this vulnerability is not listed in the CISA KEV catalog, and a vendor patch is available via IBM's advisory.

IBM Information Disclosure Maximo Application Suite
NVD
CVSS 3.1
5.3
EPSS
0.4%
CVE-2026-71225 Aug 05, 12:16 MEDIUM This Month

IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.

Information Disclosure Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9 Red Hat Hardened Images +1
NVD VulDB
CVSS 3.1
6.5
EPSS
0.2%
CVE-2026-66391 Jul 27, 16:45 MEDIUM This Month

Unauthenticated remote attackers can partially read and modify data in Apache Wicket versions 9.0.0 through 9.23.0 and 10.0.0 through 10.9.0 due to a protection mechanism that relies on insufficiently random values. The vulnerability is automatable with low attack complexity and no user interaction, though no active exploitation or public exploit code has been observed at this time. While the technical impact is limited to partial confidentiality and integrity compromise, the widespread enterprise use of Wicket makes it a moderate priority for patching.

Apache Information Disclosure Apache Wicket
NVD
CVSS 3.1
6.5
EPSS
0.2%
CVE-2026-46351 Jul 16, 17:58 HIGH PATCH This Week

Session hijacking in BigBlueButton before 3.0.21 lets an authenticated conference participant predict and reuse other users' session tokens to impersonate them. The bbb-web component generated 16-character sessionToken values (and 12-character auth tokens and internal user IDs) using Apache Commons RandomStringUtils.randomAlphanumeric, a non-cryptographic PRNG, making the token space guessable to anyone who already holds a valid session. Rated CVSS 8.1 with high confidentiality and integrity impact; no public exploit identified at time of analysis.

Java Information Disclosure Bigbluebutton
NVD GitHub
CVSS 3.1
8.1
EPSS
0.3%
CVE-2026-14702 Jul 05, 04:00 LOW POC PATCH Monitor

Insufficiently random temporary file naming in markdownify-mcp (zcaceres, versions through 1.1.0) exposes transiently written content to local users who can predict or race the generated file path. The saveToTempFile function in src/Markdownify.ts affects the webpage-to-markdown, youtube-to-markdown, and bing-search-to-markdown conversion pipelines, allowing a co-located attacker to read converted content before cleanup. No active exploitation has been confirmed (not in CISA KEV), though a proof-of-concept is publicly available; the overall risk is low given the local-only, high-complexity attack requirements reflected in the CVSS 4.0 score of 2.0.

Information Disclosure Markdownify Mcp
NVD VulDB GitHub
CVSS 4.0
1.1
EPSS
0.1%
EPSS 0% CVSS 2.1
LOW PATCH Monitor

AshAdmin shipped a compile-time constant string ('ash_admin-Ed55GFnX') as the default CSP nonce for inline script and style tags across all requests in versions 0.10.8 through 1.3.0, rendering nonce-based Content-Security-Policy enforcement completely ineffective for any application using the default configuration. Applications that adopted the documented default and explicitly allow-listed this published constant in their CSP script-src directive would have their CSP protection neutralized by any attacker able to inject HTML into an admin page. No active exploitation or public proof-of-concept has been identified; the CVSS 4.0 score of 2.1 reflects significant compound preconditions required for exploitation.

Code Injection Ash Admin
NVD GitHub VulDB
EPSS 0% CVSS 2.9
LOW POC Monitor

Predictable authentication token generation in TOTOLINK N600R firmware 4.3.0cu.7866_B20220506 exposes the router's web management interface to session token prediction attacks from the network. The loginAuth function in /web_cste/cgi-bin/cstecgi.cgi generates insufficiently random values (CWE-330), enabling unauthenticated remote attackers to predict valid session tokens and gain unauthorized access to router configuration data. A proof-of-concept exploit script (poc.py) is publicly available on GitHub, though high attack complexity limits practical exploitation to technically capable attackers.

Information Disclosure N600R
NVD VulDB GitHub
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

Cross-tenant data exposure in Google Cloud Vertex AI Search for Commerce (versions prior to 2026-04-27) allowed an authenticated attacker who knew a victim's Google Cloud project number to read from and write to the Cloud Storage buckets used for BigQuery Import staging, because those bucket names were predictably derived rather than randomized. An attacker could reach another tenant's staged catalog data and import error logs, breaching data confidentiality and integrity across project boundaries. There is no public exploit identified at time of analysis, and Google fixed the issue server-side so no customer action is required.

Google Information Disclosure Vertex Ai Search For Commerce
NVD
EPSS 0% CVSS 6.1
MEDIUM PATCH This Month

Cryptographic failure in Adminer's CSRF token scheme before version 5.4.3 allows an attacker who observes any single valid token to recover the session secret with one XOR operation, then forge unlimited valid CSRF tokens indefinitely. The token format `(rand XOR secret):rand` transmits both XOR operands together, rendering the masking scheme arithmetically transparent; this flaw is compounded by approximately 20 bits of entropy in the underlying random value and PHP loose comparison in token verification. Successful exploitation permits CSRF attacks against authenticated Adminer sessions, enabling execution of arbitrary SQL queries including data exfiltration, unauthorized modification, and destructive operations. No public exploit has been identified at time of analysis.

PHP CSRF XSS +1
NVD GitHub
EPSS 0% CVSS 6.3
MEDIUM This Month

Insufficient entropy in API key generation for pkp/pkp-lib 3.3.0, 3.4.0, and 3.5.0 exposes generated API keys to brute-force prediction. The vulnerable code derived API keys using SHA1 of the current Unix timestamp (sha1(time())), which yields a deterministic, low-entropy value easily narrowed to a small candidate window if the approximate key-generation time is known or guessable. No public exploit or CISA KEV listing exists at time of analysis, but the upstream fix commit (529b5df) is publicly visible and the flaw is self-evident from the diff.

PHP Information Disclosure
NVD GitHub VulDB
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Session data tampering in IBM Maximo Application Suite 9.0, 9.1, and 9.2 is possible because the application signs session tokens with a weak HMAC secret, classified under CWE-330 (Use of Insufficiently Random Values). A remote unauthenticated attacker who can derive or predict the HMAC signing key may forge or modify session tokens, undermining session integrity across affected deployments. No public exploit code has been identified, this vulnerability is not listed in the CISA KEV catalog, and a vendor patch is available via IBM's advisory.

IBM Information Disclosure Maximo Application Suite
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.

Information Disclosure Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 8 +3
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Unauthenticated remote attackers can partially read and modify data in Apache Wicket versions 9.0.0 through 9.23.0 and 10.0.0 through 10.9.0 due to a protection mechanism that relies on insufficiently random values. The vulnerability is automatable with low attack complexity and no user interaction, though no active exploitation or public exploit code has been observed at this time. While the technical impact is limited to partial confidentiality and integrity compromise, the widespread enterprise use of Wicket makes it a moderate priority for patching.

Apache Information Disclosure Apache Wicket
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Session hijacking in BigBlueButton before 3.0.21 lets an authenticated conference participant predict and reuse other users' session tokens to impersonate them. The bbb-web component generated 16-character sessionToken values (and 12-character auth tokens and internal user IDs) using Apache Commons RandomStringUtils.randomAlphanumeric, a non-cryptographic PRNG, making the token space guessable to anyone who already holds a valid session. Rated CVSS 8.1 with high confidentiality and integrity impact; no public exploit identified at time of analysis.

Java Information Disclosure Bigbluebutton
NVD GitHub
EPSS 0% CVSS 1.1
LOW POC PATCH Monitor

Insufficiently random temporary file naming in markdownify-mcp (zcaceres, versions through 1.1.0) exposes transiently written content to local users who can predict or race the generated file path. The saveToTempFile function in src/Markdownify.ts affects the webpage-to-markdown, youtube-to-markdown, and bing-search-to-markdown conversion pipelines, allowing a co-located attacker to read converted content before cleanup. No active exploitation has been confirmed (not in CISA KEV), though a proof-of-concept is publicly available; the overall risk is low given the local-only, high-complexity attack requirements reflected in the CVSS 4.0 score of 2.0.

Information Disclosure Markdownify Mcp
NVD VulDB GitHub

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