CVE-2026-49825

HIGHPre-NVD 8.28.2
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-08. A secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-63390 (ENISA EUVD) · GHSA-4jhm-jv67-739f (GitHub Security Advisories) · PYSEC-2026-2614 (OSV.dev)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.2Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in `lxml.html.defs.link_attrs were missing xlink:href`, which can be used for URL bypass attacks in embedded SVG/MathML/etc. content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean 0.4.5.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
53
EG Risk 53/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-09). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 8, 2026

Last Modified

October 26, 2026

Advisory Details (4)

Auto-updated Aug 20, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

lxml-6.1.1

Patch available: lxml/lxml lxml-6.1.1

https://github.com/lxml/lxml/releases/tag/lxml-6.1.1
GitHub commit

commit 5927a6d5e851 (lxml/lxml)

Fix landed in lxml/lxml commit 5927a6d5e851 — awaiting tagged release

https://github.com/lxml/lxml/commit/5927a6d5e851845140975d99b65461e255caaab0
GitHub commit

commit 322357ac61c6 (fedora-python/lxml_html_clean)

Fix landed in fedora-python/lxml_html_clean commit 322357ac61c6 — awaiting tagged release

https://github.com/fedora-python/lxml_html_clean/commit/322357ac61c6cf80fcbaba53b4e92e31f3ded9f2
GitHub advisoryMentions a patch (unverified)

javascript: URL bypass in Cleaner via xlink:href · Advisory · fedora-python/lxml_html_clean · GitHub

https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatpython-lxml-0:4.2.3-2.el8_4.12026-10-26redhat
redhatpython-lxml-0:3.2.1-4.el7_9.12026-10-26redhat
redhatpython-lxml-0:2.2.3-1.2.el6_102026-10-26redhat
ubuntupython3-lxml (5.2.1-1ubuntu0.2) @ noble2026-10-26ubuntu
redhatrhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:17918178442026-10-21redhat
redhatrhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:17918671892026-10-21redhat
redhatrhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:17918325382026-10-19redhat
redhatpython-lxml-0:4.2.3-4.el8_6.12026-10-19redhat
redhatpython-lxml-0:4.2.3-4.el8_8.12026-10-19redhat
redhatquay/quay-rhel9:17912655902026-10-12redhat
redhatquay/quay-rhel8:17914624282026-10-08redhat
redhatquay/quay-rhel8:17913145142026-10-08redhat
redhatquay/quay-rhel8:17908084432026-10-07redhat
redhatquay/quay-rhel9:17906902982026-10-01redhat
redhatpython-lxml-0:4.9.2-5.el9pc2026-10-01redhat
redhatpython-lxml-0:5.3.1-2.el9pc2026-10-01redhat
redhatpython3.12-lxml-0:4.9.3-2.el9_4.12026-09-30redhat
redhatpython3.12-lxml-0:4.9.3-2.el9_6.12026-09-30redhat
redhatansible-automation-platform-25/ee-supported-rhel8:17896330502026-09-23redhat
redhatansible-automation-platform-26/hub-rhel9:17896112742026-09-23redhat
redhatansible-automation-platform-27/hub-rhel9:17895726322026-09-23redhat
redhatansible-automation-platform-25/ee-supported-rhel9:17896176302026-09-23redhat
redhatpython-lxml-0:4.2.3-5.el8_102026-09-16redhat
redhatrhui5/rhua-rhel9:17894780952026-09-16redhat
redhatansible-automation-platform-27/ee-supported-rhel9:17889240332026-09-14redhat
redhatpython-lxml-0:4.6.5-3.el9_6.12026-09-14redhat
redhatpython-lxml-0:4.6.5-3.el9_4.12026-09-14redhat
redhatpython-lxml-0:4.6.5-3.el9_2.12026-09-14redhat
redhatpython3.12-lxml-0:4.9.3-2.el9_8.12026-09-09redhat
redhatpython-lxml-0:4.6.5-3.el9_8.12026-09-09redhat
piplxml_html_clean @ 0.4.5 (fixes < 0.4.5)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 4 ecosystems)
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
lxml5.4.0-1 ... 7.0.0~b1-1 (8 versions)
  • every version on: no fix on record
—
lxml-html-clean0.4.2-1, 0.4.3-1, 0.4.4-1, 0.4.4-1~deb13u1, 0.4.5-1
  • every version on: no fix on record
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
lxml5.4.0-1, 6.0.1-1, 6.0.2-1, 6.1.0-1
  • every version up to 6.1.3-1: fixed in 6.1.3-1
—
lxml-html-clean0.4.2-1, 0.4.3-1, 0.4.4-1, 0.4.4-1~deb13u1
  • every version up to 0.4.5-1: fixed in 0.4.5-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
lxml4.9.2-1
  • every version up to 4.9.2-1+deb12u1: fixed in 4.9.2-1+deb12u1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
lxml-html-clean0.1.0 ... 0.4.4 (12 versions)
  • every version up to 0.4.5: fixed in 0.4.5
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(12)

Data Freshness Timeline

(refreshed 9× in last 7d / 37× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 124 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 24 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  4. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-11-10 12:05 UTCEchelonGraph re-scored
  6. 2026-11-10 12:05 UTCVendor advisory
  7. 2026-11-10 12:05 UTCGHSA enrichmentGHSA-4jhm-jv67-739f · GitHub severity HIGH · GitHub CVSS 8.2
  8. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-11-02 23:15 UTCEchelonGraph re-scored
  16. 2026-11-02 23:15 UTCVendor advisory
  17. 2026-11-02 23:15 UTCGHSA enrichmentGHSA-4jhm-jv67-739f · GitHub severity HIGH · GitHub CVSS 8.2
  18. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-11-01 07:46 UTCGHSA enrichmentGHSA-4jhm-jv67-739f · GitHub severity HIGH · GitHub CVSS 8.2
  21. 2026-11-01 07:46 UTCEchelonGraph re-scored
  22. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  24. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  25. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
Show 75 more
  1. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-10-26 10:26 UTCEchelonGraph re-scored
  4. 2026-10-26 10:26 UTCVendor advisory
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-10-25 14:22 UTCEchelonGraph re-scored
  7. 2026-10-25 00:42 UTCEchelonGraph re-scored
  8. 2026-10-25 00:42 UTCVendor advisory
  9. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  10. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  12. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  14. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  15. 2026-10-18 03:34 UTCEchelonGraph re-scored
  16. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-17 11:54 UTCEchelonGraph re-scored
  18. 2026-10-17 11:54 UTCVendor advisory
  19. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  22. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-10-12 15:59 UTCEchelonGraph re-scored
  25. 2026-10-11 19:43 UTCEchelonGraph re-scored
  26. 2026-10-11 16:57 UTCEchelonGraph re-scored
  27. 2026-10-11 14:21 UTCEchelonGraph re-scored
  28. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  29. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  30. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  31. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  32. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  33. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  34. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  36. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  38. 2026-10-01 16:10 UTCEchelonGraph re-scored
  39. 2026-10-01 16:10 UTCVendor advisory
  40. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  41. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  42. 2026-09-28 13:21 UTCEchelonGraph re-scored
  43. 2026-09-28 13:21 UTCVendor advisory
  44. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  45. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  46. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  47. 2026-09-24 11:47 UTCEchelonGraph re-scored
  48. 2026-09-24 11:47 UTCVendor advisory
  49. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  50. 2026-09-23 06:05 UTCEchelonGraph re-scored
  51. 2026-09-23 06:05 UTCVendor advisory
  52. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  53. 2026-09-18 20:11 UTCEchelonGraph re-scored
  54. 2026-09-18 20:11 UTCVendor advisory
  55. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  56. 2026-09-18 05:42 UTCEchelonGraph re-scored
  57. 2026-09-18 05:42 UTCVendor advisory
  58. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  59. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  60. 2026-09-14 11:15 UTCVendor advisory
  61. 2026-09-13 23:48 UTCEchelonGraph re-scored
  62. 2026-09-13 23:48 UTCVendor advisory
  63. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  64. 2026-09-13 08:23 UTCEchelonGraph re-scored
  65. 2026-09-13 08:23 UTCVendor advisory
  66. 2026-09-12 14:54 UTCVendor advisory
  67. 2026-09-12 03:31 UTCEchelonGraph re-scored
  68. 2026-09-12 03:31 UTCVendor advisory
  69. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  70. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  71. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  72. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  73. 2026-09-06 14:02 UTCEchelonGraph re-scored
  74. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  75. 2026-09-05 22:46 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-49825?
CVE-2026-49825 is a high-severity vulnerability; its CVE record was published on July 8, 2026. lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in lxml.html.defs.link_attrs were missing xlink:href, which can be used for URL bypass attacks in embedded SVG/MathML/etc. content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean…
When was the CVE record for CVE-2026-49825 published?
The CVE record for CVE-2026-49825 was published on July 8, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-49825 actively exploited?
CVE-2026-49825 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49825?
CVE-2026-49825 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49825?
A fix for CVE-2026-49825 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49825 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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