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: 0.2%, top 89% of all CVEs by exploit prediction. 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%CVSS: 3.1Exploit: None knownExposed: 0

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

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
3.1(medium)
EG Risk
14(Track)
EG Risk 14/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

July 31, 2026

Last Modified

August 1, 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 rangeFixed inDependents
contao/contao5.7.0 ... 5.7.6 (7 versions)5.7.7—
contao/core-bundle5.7.0 ... 5.7.6 (7 versions)5.7.7—

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(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 in the National Vulnerability Database on July 31, 2026, with the most recent update on August 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55825 actively exploited?
CVE-2026-55825 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.7% of all scored CVEs.
What is the CVSS score of CVE-2026-55825?
CVE-2026-55825 has a CVSS v3 base score of 3.1 (NVD).
How do I remediate CVE-2026-55825?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55825, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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