CVE-2026-51153

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-08-31. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: Elevated riskExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Stored Cross-Site Scripting (XSS) in TaskRunHandler.post() in web/handlers/task.py in QD 20220208 through 20250803. When a task is run via /task//run, the handler renders task log content (logtmp) into the HTML response using Python % string formatting without HTML encoding. logtmp is populated from the exception object or from new_env.variables.__log__, which is attacker-controlled via the template extract_variables mechanism. A low-privileged authenticated attacker can create a crafted HAR template that extracts arbitrary HTML/JavaScript into the __log__ variable via the api://util/unicode endpoint. When a victim triggers the task run, the embedded script executes in the victim browser within the QD application context.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

CVE-2026-51153 · GitHub

https://gist.github.com/kurokoleung/9fc51b02c85c2f466bf4ea72c62ba343
generic

HTTP task automation framework | QD

https://qd-today.github.io/qd/

Vendor Advisories for CVE-2026-51153(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 74× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 02:21 UTCEG score recompute
  2. 2026-10-05 02:21 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 01:13 UTCEG score recompute
  5. 2026-10-04 01:13 UTCGHSA enrichment
  6. 2026-10-03 14:26 UTCEPSS rescore
  7. 2026-10-02 22:11 UTCEG score recompute
  8. 2026-10-02 22:11 UTCGHSA enrichment
  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-01 20:57 UTCEG score recompute
  11. 2026-10-01 20:57 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-09-30 19:47 UTCEG score recompute
  14. 2026-09-30 19:47 UTCGHSA enrichment
  15. 2026-09-30 15:03 UTCEPSS rescore
  16. 2026-09-29 11:54 UTCEG score recompute
  17. 2026-09-29 11:53 UTCGHSA enrichment
  18. 2026-09-28 13:51 UTCEPSS rescore
  19. 2026-09-28 10:08 UTCEG score recompute
  20. 2026-09-28 10:08 UTCGHSA enrichment
  21. 2026-09-27 13:48 UTCEPSS rescore
  22. 2026-09-27 08:58 UTCEG score recompute
  23. 2026-09-27 08:58 UTCGHSA enrichment
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-26 07:49 UTCEG score recompute
Show 66 more
  1. 2026-09-26 07:49 UTCGHSA enrichment
  2. 2026-09-26 00:27 UTCEPSS rescore
  3. 2026-09-24 22:05 UTCEG score recompute
  4. 2026-09-24 22:05 UTCGHSA enrichment
  5. 2026-09-23 20:42 UTCEG score recompute
  6. 2026-09-23 20:42 UTCGHSA enrichment
  7. 2026-09-23 17:53 UTCEPSS rescore
  8. 2026-09-22 19:33 UTCEG score recompute
  9. 2026-09-22 19:33 UTCGHSA enrichment
  10. 2026-09-21 18:24 UTCEG score recompute
  11. 2026-09-21 18:24 UTCGHSA enrichment
  12. 2026-09-20 20:16 UTCEPSS rescore
  13. 2026-09-20 17:16 UTCGHSA enrichment
  14. 2026-09-19 16:01 UTCEG score recompute
  15. 2026-09-19 16:01 UTCGHSA enrichment
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-18 14:40 UTCEG score recompute
  18. 2026-09-18 14:40 UTCGHSA enrichment
  19. 2026-09-17 13:31 UTCEG score recompute
  20. 2026-09-17 13:31 UTCGHSA enrichment
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-16 12:20 UTCEG score recompute
  23. 2026-09-16 12:20 UTCGHSA enrichment
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-15 11:12 UTCEG score recompute
  26. 2026-09-15 11:12 UTCGHSA enrichment
  27. 2026-09-14 10:04 UTCEG score recompute
  28. 2026-09-14 10:04 UTCGHSA enrichment
  29. 2026-09-13 16:47 UTCEPSS rescore
  30. 2026-09-13 08:48 UTCEG score recompute
  31. 2026-09-13 08:48 UTCGHSA enrichment
  32. 2026-09-12 07:40 UTCEG score recompute
  33. 2026-09-12 07:39 UTCGHSA enrichment
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 06:31 UTCEG score recompute
  36. 2026-09-11 06:31 UTCGHSA enrichment
  37. 2026-09-10 09:35 UTCEPSS rescore
  38. 2026-09-10 05:23 UTCGHSA enrichment
  39. 2026-09-09 04:13 UTCEG score recompute
  40. 2026-09-09 04:13 UTCGHSA enrichment
  41. 2026-09-08 22:01 UTCEPSS rescore
  42. 2026-09-08 02:58 UTCEG score recompute
  43. 2026-09-08 02:58 UTCGHSA enrichment
  44. 2026-09-07 16:01 UTCEPSS rescore
  45. 2026-09-07 01:50 UTCEG score recompute
  46. 2026-09-07 01:49 UTCGHSA enrichment
  47. 2026-09-06 13:47 UTCEPSS rescore
  48. 2026-09-06 00:38 UTCEG score recompute
  49. 2026-09-06 00:38 UTCGHSA enrichment
  50. 2026-09-04 23:29 UTCEG score recompute
  51. 2026-09-04 23:29 UTCGHSA enrichment
  52. 2026-09-04 05:06 UTCEPSS rescore
  53. 2026-09-03 21:22 UTCGHSA enrichment
  54. 2026-09-02 20:10 UTCEG score recompute
  55. 2026-09-02 20:10 UTCGHSA enrichment
  56. 2026-09-02 14:12 UTCEPSS rescore
  57. 2026-09-01 16:19 UTCEG score recompute
  58. 2026-09-01 16:19 UTCGHSA enrichment
  59. 2026-09-01 15:45 UTCEG score recompute▲ 5.40
  60. 2026-09-01 15:44 UTCGHSA enrichment
  61. 2026-09-01 15:42 UTCMITRE cvelistV5CVSS v3 → 5.4 · severity → MEDIUM
  62. 2026-09-01 13:54 UTCEPSS rescore
  63. 2026-08-31 21:07 UTCGHSA enrichment
  64. 2026-08-31 16:20 UTCNVD update
  65. 2026-08-31 15:36 UTCEG score recompute
  66. 2026-08-31 15:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51153?
CVE-2026-51153 is a medium vulnerability published on August 31, 2026. Stored Cross-Site Scripting (XSS) in TaskRunHandler.post() in web/handlers/task.py in QD 20220208 through 20250803. When a task is run via /task/<taskid>/run, the handler renders task log content (logtmp) into the HTML response using Python % string formatting without HTML encoding. logtmp is…
When was CVE-2026-51153 disclosed?
CVE-2026-51153 was first published on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51153 actively exploited?
CVE-2026-51153 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-51153?
CVE-2026-51153 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51153?
No fix for CVE-2026-51153 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-51153 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-51153

Explore →

Is Your Infrastructure Affected by CVE-2026-51153?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs