CVE-2026-55825

LOWPre-NVD 3.13.1—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 3.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
3.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 3.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Contao is an Open Source CMS. In versions 5.7.0 through 5.7.6, an authenticated backend user who can access one job can request an attachment identifier containing ../ segments and make the job attachment download endpoint read a file from another job directory inside var/job-attachments. The controller authorizes only the jobUuid route parameter. The later attachment lookup joins that authorized job UUID with the attacker-controlled identifier, then passes the combined path to the virtual filesystem. VirtualFilesystem::resolve() canonicalizes the whole path and only rejects paths that escape the filesystem mount, so authorized-job/../victim-job/debug_log.csv becomes victim-job/debug_log.csv. This is a cross-job authorization bypass for known job attachment paths. It is not a practical brute-force against unknown jobs because job directories are UUID v4 values.

CVSS v3
3.1
EG Score
3.1LOWmedium confidence
EG Risk
14
EG Risk 14/100CISA 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
Severity31% × 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

July 31, 2026

Last Modified

September 8, 2026

References (1)

Vendor Advisories for CVE-2026-55825(1)

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

Affected Packages

(2 across 1 ecosystem)
Packagist(2)
PackageVulnerable rangeFix by version rangeDependents
contao/contao5.7.0 ... 5.7.6 (7 versions)
  • 5.7.0 up to 5.7.7: fixed in 5.7.7
—
contao/core-bundle5.7.0 ... 5.7.6 (7 versions)
  • 5.7.0 up to 5.7.7: fixed in 5.7.7
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 31× 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. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 06:44 UTCEG score recompute
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-02 17:56 UTCEPSS rescore
  5. 2026-10-01 19:50 UTCEPSS rescore
  6. 2026-10-01 02:46 UTCEG score recompute
  7. 2026-09-30 15:03 UTCEPSS rescore
  8. 2026-09-29 15:22 UTCEPSS rescore
  9. 2026-09-28 13:51 UTCEPSS rescore
  10. 2026-09-27 18:42 UTCEG score recompute
  11. 2026-09-27 13:48 UTCEPSS rescore
  12. 2026-09-26 15:59 UTCEPSS rescore
  13. 2026-09-24 14:04 UTCEPSS rescore
  14. 2026-09-23 17:54 UTCEPSS rescore
  15. 2026-09-22 07:36 UTCEG score recompute
  16. 2026-09-20 20:16 UTCEPSS rescore
  17. 2026-09-18 19:28 UTCEPSS rescore
  18. 2026-09-18 11:05 UTCEG score recompute
  19. 2026-09-17 19:31 UTCEPSS rescore
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 07:06 UTCEG score recompute
  23. 2026-09-15 03:11 UTCEPSS rescore
  24. 2026-09-13 16:47 UTCEPSS rescore
  25. 2026-09-12 01:21 UTCEG score recompute
Show 51 more
  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-08 21:22 UTCEG score recompute
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-05 18:46 UTCEG score recompute
  7. 2026-09-04 05:07 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-02 08:11 UTCEG score recompute
  10. 2026-09-01 13:54 UTCEPSS rescore
  11. 2026-09-01 04:40 UTCEPSS rescore
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-29 22:18 UTCEG score recompute
  15. 2026-08-28 21:41 UTCEPSS rescore
  16. 2026-08-27 14:25 UTCEPSS rescore
  17. 2026-08-26 14:46 UTCEPSS rescore
  18. 2026-08-26 08:39 UTCEG score recompute
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-23 04:38 UTCEG score recompute
  21. 2026-08-23 00:19 UTCEPSS rescore
  22. 2026-08-21 23:49 UTCEPSS rescore
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-20 00:40 UTCEG score recompute
  25. 2026-08-19 17:04 UTCEPSS rescore
  26. 2026-08-18 13:48 UTCEPSS rescore
  27. 2026-08-17 13:47 UTCEPSS rescore
  28. 2026-08-16 20:40 UTCEG score recompute
  29. 2026-08-16 14:56 UTCEPSS rescore
  30. 2026-08-16 02:14 UTCEPSS rescore
  31. 2026-08-15 01:30 UTCEPSS rescore
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-13 16:41 UTCEG score recompute
  34. 2026-08-12 13:51 UTCEPSS rescore
  35. 2026-08-11 00:00 UTCEPSS rescore
  36. 2026-08-10 12:29 UTCEG score recompute
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-08 16:37 UTCEPSS rescore
  39. 2026-08-07 08:30 UTCEG score recompute
  40. 2026-08-06 13:47 UTCEPSS rescore
  41. 2026-08-05 19:17 UTCEPSS rescore
  42. 2026-08-04 15:10 UTCEPSS rescore
  43. 2026-08-04 10:39 UTCEPSS rescore
  44. 2026-08-04 04:32 UTCEG score recompute
  45. 2026-08-03 10:36 UTCEPSS rescore
  46. 2026-08-02 02:27 UTCEPSS rescore
  47. 2026-08-01 00:32 UTCEG score recompute
  48. 2026-07-31 23:40 UTCEG score recompute
  49. 2026-07-31 20:22 UTCEG score recompute
  50. 2026-07-31 19:48 UTCEG score recompute
  51. 2026-07-31 19:48 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-55825?
CVE-2026-55825 is a low vulnerability published on July 31, 2026. Contao is an Open Source CMS. In versions 5.7.0 through 5.7.6, an authenticated backend user who can access one job can request an attachment identifier containing ../ segments and make the job attachment download endpoint read a file from another job directory inside var/job-attachments. The…
When was CVE-2026-55825 disclosed?
CVE-2026-55825 was first published on July 31, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55825 actively exploited?
CVE-2026-55825 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-2026-55825?
CVE-2026-55825 has a CVSS base score of 3.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55825?
A fix for CVE-2026-55825 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55825 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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