133 lines
5.4 KiB
JSON
133 lines
5.4 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-44899",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-07T21:50:33.546Z",
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"datePublished": "2026-05-26T20:36:40.461Z",
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"dateUpdated": "2026-05-27T13:31:02.744Z"
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},
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"containers": {
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"cna": {
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"title": "Mistune Image Directive CSS Injection Vulnerability",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-79",
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"lang": "en",
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 4.7,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/lepture/mistune/security/advisories/GHSA-ccfx-mfmx-2fx9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/lepture/mistune/security/advisories/GHSA-ccfx-mfmx-2fx9"
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},
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{
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"name": "https://github.com/lepture/mistune/releases/tag/v3.2.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/lepture/mistune/releases/tag/v3.2.1"
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}
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],
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"affected": [
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{
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"vendor": "lepture",
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"product": "mistune",
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"versions": [
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{
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"version": "< 3.2.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-26T20:36:40.461Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the Image directive plugin validates the :width: and :height: options with a regex compiled as _num_re = re.compile(r\"^\\d+(?:\\.\\d*)?\"). When the validated value is not a plain integer, render_block_image() inserts it directly into a style=\"width:...;\" or style=\"height:...;\" attribute. Because the value was accepted by the prefix-only regex, any CSS after the leading digits reaches the style= attribute verbatim and without escaping. This vulnerability is fixed in 3.2.1."
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}
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],
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"source": {
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"advisory": "GHSA-ccfx-mfmx-2fx9",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/lepture/mistune/security/advisories/GHSA-ccfx-mfmx-2fx9",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-27T13:28:35.879099Z",
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"id": "CVE-2026-44899",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-27T13:31:02.744Z"
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}
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}
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]
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}
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} |