CVE-2026-9746
CVE-2026-9746 is a medium-severity vulnerability in Mongodb with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-617.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 7.1
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35862
- Weakness: CWE-617
- Affected product: Mongodb
- Published:
- Last modified:
Description
When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.
Frequently asked questions
- What is CVE-2026-9746?
- When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.
- How severe is CVE-2026-9746?
- CVE-2026-9746 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-9746 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-9746?
- CVE-2026-9746 affects Mongodb. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-9746?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-9746 have an EU (EUVD) identifier?
- Yes. CVE-2026-9746 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35862.
- When was CVE-2026-9746 published?
- CVE-2026-9746 was published on 2026-06-09 and last updated on 2026-06-18.
References
Affected products (1)
- cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
More vulnerabilities in Mongodb
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- CVE-2026-4148 — High (CVSS 8.8): A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who…
- CVE-2024-1351 — High (CVSS 8.8): Under certain configurations of --tlsCAFile and tls.CAFile, MongoDB Server may skip peer certificate validation which…
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Other CWE-617 (Reachable Assertion) vulnerabilities
- CVE-2020-3615 — Critical (CVSS 9.8): Valid deauth/disassoc frames is dropped in case if RMF is enabled and some rouge peer keep on sending rogue…
- CVE-2019-9795 — Critical (CVSS 9.8): A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by…
- CVE-2026-31739 — High (CVSS 8.8): In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - Add missing CRYPTO_ALG_ASYNC The…
- CVE-2020-12417 — High (CVSS 8.8): Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in…
- CVE-2020-6623 — High (CVSS 8.8): stb stb_truetype.h through 1.22 has an assertion failure in stbtt__cff_get_index.
- CVE-2020-6619 — High (CVSS 8.8): stb stb_truetype.h through 1.22 has an assertion failure in stbtt__buf_seek.