Monthly
Regex metacharacter injection in @astrojs/netlify prior to 8.1.2 causes the Netlify Image CDN allowlist to be broader than the developer intended, allowing optimization of images from unintended URL paths on already-allowed hostnames. The root cause is that remotePatternToRegex() escapes dots in hostnames but passes literal pathname values into the generated regex unescaped, so a pathname like /img/v1.0/file silently becomes a wildcard that matches /img/v1X0/file or /img/v1/0/file. No active exploitation has been confirmed (not in CISA KEV), though a working proof-of-concept is included in the GHSA advisory; CVSS 3.7 with AC:H reflects the constrained but network-accessible impact.
Sigstore attestation verification in GitHub CLI prior to 2.97.0 can be defeated when an attacker registers a lookalike repository whose name contains dot characters that function as regex wildcards - for example, github/artifact.attestations-workflows matching a matcher intended solely for github/artifact-attestations-workflows. The `gh attestation verify` command in pkg/cmd/attestation/verify/policy.go constructed Certificate Subject Alternative Name (SAN) matchers by interpolating `--signer-repo` and `--signer-workflow` flag values directly into regex patterns without calling regexp.QuoteMeta(), allowing any dot or other metacharacter in a GitHub-permitted name to act as a wildcard. No public exploit has been identified at time of analysis; the CVSS 4.0 AT:P designator confirms exploitation requires the attacker to first position a valid lookalike repository with legitimate Sigstore attestations, making this a targeted rather than opportunistic threat.
Unauthenticated remote file disclosure in Webmin (all versions prior to 2.641) exposes the contents of any .conf file residing within module directories. The root cause is a flawed regular expression (CWE-185) that was intended to restrict accessible file paths but can be bypassed with a crafted request, allowing unauthenticated network attackers to read configuration files that may contain credentials, API keys, or other sensitive deployment data. No public exploit or CISA KEV listing has been identified at time of analysis, though the zero-authentication, network-accessible attack surface makes this straightforward to probe at scale.
IP restriction bypass in Hono's ip-restriction middleware (hono/ip-restriction) prior to version 4.12.21 allows unauthenticated remote attackers to circumvent configured deny and allow rules by submitting non-canonical IPv6 representations of restricted addresses. String equality comparison applied after only partial normalization means that compressed, explicit-zero, or hex-notation IPv4-mapped IPv6 forms of a listed address silently fail to match the normalized rule entry, causing enforcement to be skipped entirely. No public exploit has been identified at time of analysis, but the bypass requires only trivial reformatting of a standard IPv6 address, making it practically low-effort for any attacker aware of the flaw.
CSRF middleware bypass in Budibase Worker allows unauthenticated remote attackers to forge state-changing requests against any Worker API endpoint by injecting a public route pattern into the query string. Affected versions prior to 3.35.4 are exposed to privilege escalation actions including sending admin invites, modifying global configuration, and managing users - all without a valid CSRF token. User interaction is required (CVSS UI:R), limiting opportunistic mass exploitation, though proof-of-concept exploit code exists per SSVC assessment. No active exploitation has been confirmed by CISA KEV at time of analysis.
Protocol-relative URL injection in Symfony's UrlGenerator allows open redirect via regex alternation bypass in route parameter validation. When route requirements use alternation patterns (e.g., `_locale: 'en|fr|vi|de'`), the validation regex `#^REQUIREMENT$#` fails to anchor middle alternatives due to regex operator precedence, enabling substring matching against attacker-supplied values. An attacker who can influence route parameters fed into the Twig `path()`/`url()` helpers can inject a value like `/evil.com` - which satisfies the requirement by containing `vi` as a substring - causing UrlGenerator to produce `//evil.com/...`, a protocol-relative URL the browser navigates off-site. No public exploit is identified at time of analysis, and the vulnerability is not listed in CISA KEV; patches are released across all supported Symfony branches.
Account takeover in GitHub Enterprise Server (all versions prior to 3.21) is possible through an OAuth redirect URI validation bypass caused by a flawed regular expression (CWE-185). An attacker who knows a first-party OAuth application's registered callback URL can craft a malicious authorization link that leaks the victim's OAuth authorization code to an attacker-controlled domain, granting access to the victim's account with the scopes of that application. Reported via the GitHub Bug Bounty program; there is no public exploit identified at time of analysis, EPSS is very low (0.05%), and CISA SSVC records exploitation status as none.
Tekton Pipelines 0.43.0 through 1.11.0 allows authenticated attackers to bypass trusted resource verification policies via unanchored regular expression patterns that match substrings rather than exact resource sources, enabling policy manipulation and unauthorized verification mode changes. The vulnerability stems from Go's regexp.MatchString function matching patterns anywhere within a string rather than requiring full anchoring, permitting attackers to craft source URIs containing trusted patterns as substrings to trigger unintended policy matches and potentially apply weaker verification keys or modes.
Authorization policy bypass in Istio service mesh due to incorrect handling of dots (.) as regular expression metacharacters in service account names. In affected versions 1.25.0–1.27.8, 1.28.0–1.28.5, and 1.29.0–1.29.1, the `serviceAccounts` and `notServiceAccounts` fields in AuthorizationPolicy misinterpret dots, causing an ALLOW rule for e.g. `cert-manager.io` to also match `cert-manager-io` and similar variants, while a DENY rule fails to block them. An authenticated attacker with low privileges can exploit this to gain unauthorized access or bypass restrictions. No active exploitation or public proof-of-concept has been identified; EPSS indicates very low exploitation probability (0.03%). Patches are available.
A regex-based bypass vulnerability in the @dicebear/converter npm package allows attackers to circumvent SVG dimension sanitization by injecting decoy <svg tags in XML constructs. Applications using @dicebear/converter on Node.js to process untrusted SVG input are vulnerable to denial of service through unbounded memory allocation when rendering malformed SVGs. The CVSS score of 7.5 reflects the high availability impact with network-accessible attack vector requiring no authentication or user interaction.
Regex metacharacter injection in @astrojs/netlify prior to 8.1.2 causes the Netlify Image CDN allowlist to be broader than the developer intended, allowing optimization of images from unintended URL paths on already-allowed hostnames. The root cause is that remotePatternToRegex() escapes dots in hostnames but passes literal pathname values into the generated regex unescaped, so a pathname like /img/v1.0/file silently becomes a wildcard that matches /img/v1X0/file or /img/v1/0/file. No active exploitation has been confirmed (not in CISA KEV), though a working proof-of-concept is included in the GHSA advisory; CVSS 3.7 with AC:H reflects the constrained but network-accessible impact.
Sigstore attestation verification in GitHub CLI prior to 2.97.0 can be defeated when an attacker registers a lookalike repository whose name contains dot characters that function as regex wildcards - for example, github/artifact.attestations-workflows matching a matcher intended solely for github/artifact-attestations-workflows. The `gh attestation verify` command in pkg/cmd/attestation/verify/policy.go constructed Certificate Subject Alternative Name (SAN) matchers by interpolating `--signer-repo` and `--signer-workflow` flag values directly into regex patterns without calling regexp.QuoteMeta(), allowing any dot or other metacharacter in a GitHub-permitted name to act as a wildcard. No public exploit has been identified at time of analysis; the CVSS 4.0 AT:P designator confirms exploitation requires the attacker to first position a valid lookalike repository with legitimate Sigstore attestations, making this a targeted rather than opportunistic threat.
Unauthenticated remote file disclosure in Webmin (all versions prior to 2.641) exposes the contents of any .conf file residing within module directories. The root cause is a flawed regular expression (CWE-185) that was intended to restrict accessible file paths but can be bypassed with a crafted request, allowing unauthenticated network attackers to read configuration files that may contain credentials, API keys, or other sensitive deployment data. No public exploit or CISA KEV listing has been identified at time of analysis, though the zero-authentication, network-accessible attack surface makes this straightforward to probe at scale.
IP restriction bypass in Hono's ip-restriction middleware (hono/ip-restriction) prior to version 4.12.21 allows unauthenticated remote attackers to circumvent configured deny and allow rules by submitting non-canonical IPv6 representations of restricted addresses. String equality comparison applied after only partial normalization means that compressed, explicit-zero, or hex-notation IPv4-mapped IPv6 forms of a listed address silently fail to match the normalized rule entry, causing enforcement to be skipped entirely. No public exploit has been identified at time of analysis, but the bypass requires only trivial reformatting of a standard IPv6 address, making it practically low-effort for any attacker aware of the flaw.
CSRF middleware bypass in Budibase Worker allows unauthenticated remote attackers to forge state-changing requests against any Worker API endpoint by injecting a public route pattern into the query string. Affected versions prior to 3.35.4 are exposed to privilege escalation actions including sending admin invites, modifying global configuration, and managing users - all without a valid CSRF token. User interaction is required (CVSS UI:R), limiting opportunistic mass exploitation, though proof-of-concept exploit code exists per SSVC assessment. No active exploitation has been confirmed by CISA KEV at time of analysis.
Protocol-relative URL injection in Symfony's UrlGenerator allows open redirect via regex alternation bypass in route parameter validation. When route requirements use alternation patterns (e.g., `_locale: 'en|fr|vi|de'`), the validation regex `#^REQUIREMENT$#` fails to anchor middle alternatives due to regex operator precedence, enabling substring matching against attacker-supplied values. An attacker who can influence route parameters fed into the Twig `path()`/`url()` helpers can inject a value like `/evil.com` - which satisfies the requirement by containing `vi` as a substring - causing UrlGenerator to produce `//evil.com/...`, a protocol-relative URL the browser navigates off-site. No public exploit is identified at time of analysis, and the vulnerability is not listed in CISA KEV; patches are released across all supported Symfony branches.
Account takeover in GitHub Enterprise Server (all versions prior to 3.21) is possible through an OAuth redirect URI validation bypass caused by a flawed regular expression (CWE-185). An attacker who knows a first-party OAuth application's registered callback URL can craft a malicious authorization link that leaks the victim's OAuth authorization code to an attacker-controlled domain, granting access to the victim's account with the scopes of that application. Reported via the GitHub Bug Bounty program; there is no public exploit identified at time of analysis, EPSS is very low (0.05%), and CISA SSVC records exploitation status as none.
Tekton Pipelines 0.43.0 through 1.11.0 allows authenticated attackers to bypass trusted resource verification policies via unanchored regular expression patterns that match substrings rather than exact resource sources, enabling policy manipulation and unauthorized verification mode changes. The vulnerability stems from Go's regexp.MatchString function matching patterns anywhere within a string rather than requiring full anchoring, permitting attackers to craft source URIs containing trusted patterns as substrings to trigger unintended policy matches and potentially apply weaker verification keys or modes.
Authorization policy bypass in Istio service mesh due to incorrect handling of dots (.) as regular expression metacharacters in service account names. In affected versions 1.25.0–1.27.8, 1.28.0–1.28.5, and 1.29.0–1.29.1, the `serviceAccounts` and `notServiceAccounts` fields in AuthorizationPolicy misinterpret dots, causing an ALLOW rule for e.g. `cert-manager.io` to also match `cert-manager-io` and similar variants, while a DENY rule fails to block them. An authenticated attacker with low privileges can exploit this to gain unauthorized access or bypass restrictions. No active exploitation or public proof-of-concept has been identified; EPSS indicates very low exploitation probability (0.03%). Patches are available.
A regex-based bypass vulnerability in the @dicebear/converter npm package allows attackers to circumvent SVG dimension sanitization by injecting decoy <svg tags in XML constructs. Applications using @dicebear/converter on Node.js to process untrusted SVG input are vulnerable to denial of service through unbounded memory allocation when rendering malformed SVGs. The CVSS score of 7.5 reflects the high availability impact with network-accessible attack vector requiring no authentication or user interaction.