CVE-2026-9318

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-08-12. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the export_book method in the _html.py format handler. Attackers can rename worksheet sheets in imported files such as XLSX, ODS, XLS, or YAML with script payloads that are assigned to the Dataset title attribute and rendered unescaped inside an HTML h3 tag, leading to session hijacking, unauthorized administrative actions, and sensitive data exposure when the output is rendered in a browser.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA 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%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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

Exploitation none (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 12, 2026

Last Modified

September 24, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
Patch available. Sources: github_pr, github_release.
generic

tablib versions prior to 3.10.0 Stored XSS via HTML Export Dataset Title | Advisories | VulnCheck

https://www.vulncheck.com/advisories/tablib-versions-prior-to-stored-xss-via-html-export-dataset-title
github_release Patch Available

v3.10.0

Patch available: jazzband/tablib v3.10.0

https://github.com/jazzband/tablib/releases/tag/v3.10.0
github_pr Patch Available

Escape dataset title in HTML serialization

Patch available: jazzband/tablib v3.10.0 (PR #668 merged 2026-07-31)

https://github.com/jazzband/tablib/pull/668
generic

GitHub - jazzband/tablib: Python Module for Tabular Datasets in XLS, CSV, JSON, YAML, &c. · GitHub

https://github.com/jazzband/tablib

Vendor Advisories for CVE-2026-9318(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
python-tablib3.10.0-1 ... 3.9.0-2 (8 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python-tablib3.10.0-1, 3.8.0-1, 3.9.0-1, 3.9.0-2
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
python-tablib3.8.0-1, 3.9.0-1, 3.9.0-2
  • every version up to 3.10.0-1: fixed in 3.10.0-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
tablib0.0.1 ... 3.9.0 (50 versions)
  • every version up to 3.10.0: fixed in 3.10.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 50× 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.

Showing the most recent 100 of 102 total refreshes for this CVE.

  1. 2026-10-05 20:49 UTCEG score recompute
  2. 2026-10-05 17:44 UTCEPSS rescore
  3. 2026-10-04 23:23 UTCEPSS rescore
  4. 2026-10-03 20:25 UTCEG score recompute
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 17:57 UTCEPSS rescore
  7. 2026-10-02 08:24 UTCEG score recompute
  8. 2026-10-01 19:51 UTCEPSS rescore
  9. 2026-09-30 21:59 UTCEG score recompute
  10. 2026-09-30 15:04 UTCEPSS rescore
  11. 2026-09-29 06:31 UTCEG score recompute
  12. 2026-09-28 13:52 UTCEPSS rescore
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  14. 2026-09-28 08:14 UTCEG score recompute
  15. 2026-09-27 13:49 UTCEPSS rescore
  16. 2026-09-27 09:58 UTCEG score recompute
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-24 20:35 UTCEG score recompute
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-23 20:56 UTCEG score recompute
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-22 21:08 UTCEG score recompute
  23. 2026-09-22 16:01 UTCEPSS rescore
  24. 2026-09-21 21:09 UTCEPSS rescore
  25. 2026-09-21 20:15 UTCEG score recompute
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  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-19 21:16 UTCEG score recompute
  3. 2026-09-18 22:49 UTCEG score recompute
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 00:33 UTCEG score recompute
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 00:24 UTCEG score recompute
  8. 2026-09-16 14:09 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 22:08 UTCEG score recompute
  11. 2026-09-15 03:12 UTCEPSS rescore
  12. 2026-09-13 21:26 UTCEG score recompute
  13. 2026-09-13 16:48 UTCEPSS rescore
  14. 2026-09-12 23:10 UTCEG score recompute
  15. 2026-09-12 15:02 UTCEPSS rescore
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  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 09:38 UTCEPSS rescore
  19. 2026-09-11 01:53 UTCEG score recompute
  20. 2026-09-10 09:35 UTCEPSS rescore
  21. 2026-09-09 05:20 UTCEG score recompute
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-07 19:45 UTCEG score recompute
  24. 2026-09-06 21:29 UTCEG score recompute
  25. 2026-09-06 13:48 UTCEPSS rescore
  26. 2026-09-05 23:04 UTCEG score recompute
  27. 2026-09-05 15:31 UTCEPSS rescore
  28. 2026-09-05 00:48 UTCEG score recompute
  29. 2026-09-04 05:07 UTCEPSS rescore
  30. 2026-09-02 23:42 UTCEG score recompute
  31. 2026-09-02 14:12 UTCEPSS rescore
  32. 2026-09-01 13:54 UTCEPSS rescore
  33. 2026-09-01 11:46 UTCEG score recompute
  34. 2026-09-01 04:40 UTCEPSS rescore
  35. 2026-08-31 11:46 UTCEG score recompute
  36. 2026-08-30 19:18 UTCEPSS rescore
  37. 2026-08-30 13:30 UTCEG score recompute
  38. 2026-08-30 01:22 UTCEPSS rescore
  39. 2026-08-29 15:14 UTCEG score recompute
  40. 2026-08-28 21:42 UTCEPSS rescore
  41. 2026-08-27 14:45 UTCEG score recompute
  42. 2026-08-27 14:25 UTCEPSS rescore
  43. 2026-08-26 16:28 UTCEG score recompute
  44. 2026-08-26 14:47 UTCEPSS rescore
  45. 2026-08-25 17:28 UTCEG score recompute
  46. 2026-08-25 13:49 UTCEPSS rescore
  47. 2026-08-24 19:12 UTCEG score recompute
  48. 2026-08-24 14:18 UTCEPSS rescore
  49. 2026-08-23 20:56 UTCEG score recompute
  50. 2026-08-23 00:19 UTCEPSS rescore
  51. 2026-08-22 00:23 UTCEG score recompute
  52. 2026-08-21 23:49 UTCEPSS rescore
  53. 2026-08-21 02:07 UTCEG score recompute
  54. 2026-08-20 22:56 UTCEPSS rescore
  55. 2026-08-20 03:49 UTCEG score recompute
  56. 2026-08-19 17:04 UTCEPSS rescore
  57. 2026-08-19 05:31 UTCEG score recompute
  58. 2026-08-18 13:49 UTCEPSS rescore
  59. 2026-08-18 07:14 UTCEG score recompute
  60. 2026-08-17 13:47 UTCEPSS rescore
  61. 2026-08-17 08:57 UTCEG score recompute
  62. 2026-08-16 14:56 UTCEPSS rescore
  63. 2026-08-16 14:56 UTCEPSS rescore
  64. 2026-08-16 10:41 UTCEG score recompute
  65. 2026-08-16 02:15 UTCEPSS rescore
  66. 2026-08-15 12:25 UTCEG score recompute
  67. 2026-08-15 01:31 UTCEPSS rescore
  68. 2026-08-14 14:08 UTCEG score recompute
  69. 2026-08-13 22:00 UTCEPSS rescore
  70. 2026-08-12 17:36 UTCEG score recompute
  71. 2026-08-12 17:35 UTCGHSA enrichment
  72. 2026-08-12 17:07 UTCEG score recompute
  73. 2026-08-12 17:07 UTCGHSA enrichment
  74. 2026-08-12 13:51 UTCEPSS rescore
  75. 2026-08-12 03:25 UTCEG score recompute

Related CVEs(same product + same CWE)

Same product

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Debian:12:python-tablib

Frequently asked(5)

What is CVE-2026-9318?
CVE-2026-9318 is a medium vulnerability published on August 12, 2026. tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the exportbook method in the…
When was CVE-2026-9318 disclosed?
CVE-2026-9318 was first published on August 12, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9318 actively exploited?
CVE-2026-9318 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-9318?
CVE-2026-9318 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-9318?
A fix for CVE-2026-9318 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-9318 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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