208 lines
8.3 KiB
JSON
208 lines
8.3 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-2019-25781",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-10-29T11:51:49.648Z",
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"datePublished": "2026-10-29T13:08:49.597Z",
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"dateUpdated": "2026-11-03T15:29:33.399Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-10-29T13:08:49.597Z"
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},
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"datePublic": "2019-03-06T00:00:00.000Z",
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"title": "Python-Markdown 3.0 through 3.11.2 Denial of Service via Link Bracket Parsing",
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"descriptions": [
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{
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"lang": "en",
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"value": "Python-Markdown 3.0 through 3.11.2 contains an algorithmic complexity vulnerability in inline link parsing that allows remote attackers to exhaust CPU through unmatched brackets. Attackers can submit short Markdown containing repeated [ or ![ characters, forcing LinkInlineProcessor.getText() and getLink() into quadratic scans that keep workers busy for minutes."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Inefficient Algorithmic Complexity",
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"cweId": "CWE-407",
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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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"affected": [
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{
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"vendor": "Python-Markdown",
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"product": "Markdown",
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"defaultStatus": "unaffected",
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"packageURL": "pkg:pypi/markdown",
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"versions": [
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{
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"version": "3.0",
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"lessThanOrEqual": "3.11.2",
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"status": "affected",
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"versionType": "custom"
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}
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],
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"repo": "https://github.com/Python-Markdown/markdown"
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:python-markdown2_project:python-markdown2:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.0",
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"versionEndIncluding": "3.11.2"
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}
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]
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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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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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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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"url": "https://github.com/Python-Markdown/markdown/issues/798",
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"tags": [
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"issue-tracking"
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],
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"name": "GitHub Issue #798"
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},
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{
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"url": "https://github.com/Python-Markdown/markdown",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/Python-Markdown/markdown/issues/1654",
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"tags": [
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"issue-tracking"
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],
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"name": "GitHub Issue #1654"
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},
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{
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"url": "https://github.com/Python-Markdown/markdown/blob/b41e0aaf1181f1a8cb200cf5a815aad7c0020d23/markdown/inlinepatterns.py#L1155-L1172",
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"tags": [
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"technical-description"
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]
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},
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{
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"name": "VulnCheck Advisory: Python-Markdown 3.0 through 3.11.2 Denial of Service via Link Bracket Parsing",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/python-markdown-3.0-through-3.11.2-denial-of-service-via-link-bracket-parsing"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Anders Kaseorg",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Muhammadyusuf Dilmurodov (agrresore)",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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/Python-Markdown/markdown/issues/1654",
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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": "2026-11-03T15:29:12.767614Z",
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"id": "CVE-2019-25781",
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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": "yes"
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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": "2026-11-03T15:29:33.399Z"
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}
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}
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]
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}
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} |