CVE-2026-49833

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (29th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

DSpace open source software is a repository application which provides durable access to digital resources. From versions 8.0-rc1 to before 8.4, 9.0-rc1 to before 9.3, and 10-rc1 to before 10.0, a path traversal vulnerability is possible via the COAR Notify / LDN service in DSpace. The attacker MUST already have DSpace administrator credentials in order to perform the attack. When reading a file input stream of an "inbound pattern" / "template", used to generate an LDN message, the LDN class does not check for path traversal or restrict the templates to a known base path. This could allow an untrusted file from elsewhere in the file system (e.g. an export log, a bitstream path, a temporary file) to be read and interpreted as an Apache Velocity template. This issue has been patched in versions 8.4, 9.3, and 10.0.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.4%
EPSS %ILE
29th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). 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.

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

September 9, 2026

Advisory Details (3)

Auto-updated Sep 2, 2026
Patch available. Sources: github, github_pr.
GitHub pull request Patch Available

[Port dspace-9_x] LDN and Curation I/O improvements

Patch available: DSpace/DSpace dspace-9.3 (PR #12552 merged 2026-05-27)

https://github.com/DSpace/DSpace/pull/12552
GitHub pull request Patch Available

[Port dspace-8_x] LDN and Curation I/O improvements

Patch available: DSpace/DSpace dspace-8.4 (PR #12540 merged 2026-05-27)

https://github.com/DSpace/DSpace/pull/12540
GitHub advisoryMentions a patch (unverified)

Path Traversal Vulnerability is possible in LDN message generation · Advisory · DSpace/DSpace · GitHub

https://github.com/DSpace/DSpace/security/advisories/GHSA-9qm4-rh6w-pq5x

Vendor Advisories for CVE-2026-49833(1)

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

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.dspace:dspace-api10.0-rc1
  • 8.0-rc1 up to 8.4: fixed in 8.4
  • 9.0-rc1 up to 9.3: fixed in 9.3
  • 10.0-rc1 up to 10.0: fixed in 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 / 31× 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 it from the CNA feed. 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). Most recent first.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-12 15:59 UTCEG score recompute
  4. 2026-10-11 19:43 UTCEG score recompute
  5. 2026-10-11 16:57 UTCEG score recompute
  6. 2026-10-11 14:21 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  15. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-10-01 16:10 UTCEG score recompute
  18. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-09-28 13:20 UTCEG score recompute
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-09-24 11:46 UTCEG score recompute
  25. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 24 more
  1. 2026-09-23 06:05 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  4. 2026-09-18 05:42 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-09-14 06:36 UTCEG score recompute
  8. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  9. 2026-09-13 08:23 UTCEG score recompute
  10. 2026-09-12 03:31 UTCEG score recompute
  11. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  12. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-09-09 22:57 UTCEG score recompute
  14. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  15. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  16. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-09-05 22:46 UTCEG score recompute
  18. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-09-02 19:57 UTCEG score recompute
  20. 2026-09-02 17:52 UTCEG score recompute
  21. 2026-07-31 04:09 UTCEG score recompute
  22. 2026-07-26 12:25 UTCEG score recompute
  23. 2026-07-23 03:18 UTCEG score recompute
  24. 2026-07-08 20:45 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-49833?
CVE-2026-49833 is a medium-severity vulnerability; its CVE record was published on July 8, 2026. DSpace open source software is a repository application which provides durable access to digital resources. From versions 8.0-rc1 to before 8.4, 9.0-rc1 to before 9.3, and 10-rc1 to before 10.0, a path traversal vulnerability is possible via the COAR Notify / LDN service in DSpace. The attacker…
When was the CVE record for CVE-2026-49833 published?
The CVE record for CVE-2026-49833 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 September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-49833 actively exploited?
CVE-2026-49833 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49833?
CVE-2026-49833 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49833?
A fix for CVE-2026-49833 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49833 are linked in the Vendor Advisories panel on this page.

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