CVE-2025-49844

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-49844
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49844.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-49844
Aliases
Downstream
Related
Published
2025-10-03T19:27:23Z
Modified
2025-11-10T16:18:22.979544Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Redis Lua Use-After-Free may lead to remote code execution
Details

Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.

Database specific 
{
    "cwe_ids": [
        "CWE-416"
    ]
}
References

Affected packages

Git / github.com/redis/redis

Affected ranges

Type
GIT
Repo
https://github.com/redis/redis
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1
Fixed
d5728cb5795c966c5b5b1e0f0ac576a7e69af539

Affected versions

1.*

1.3.6

2.*

2.2-alpha0
2.2-alpha1
2.2-alpha2
2.2-alpha3
2.2-alpha4
2.2-alpha5
2.2-alpha6
2.2.0-rc1
2.3-alpha0

3.*

3.0-alpha0

8.*

8.2-int
8.2-m01
8.2-m01-int
8.2-m01-int2
8.2-rc1
8.2-rc1-int
8.2.0
8.2.1
8.2.1-int

v1.*

v1.3.10
v1.3.11
v1.3.12
v1.3.7
v1.3.8
v1.3.9

v2.*

v2.0.0-rc1
v2.1.1-watch

Other

vm-playpen
with-deprecated-diskstore

Database specific

vanir_signatures

[
    {
        "id": "CVE-2025-49844-1bff8e25",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c",
            "function": "defragStream"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 564.0,
            "function_hash": "231823367469822555940742382288933873230"
        }
    },
    {
        "id": "CVE-2025-49844-27870a37",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "deps/lua/src/lparser.c",
            "function": "luaY_parser"
        },
        "source": "https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539",
        "signature_version": "v1",
        "digest": {
            "length": 486.0,
            "function_hash": "321506632171630486713949632549336694198"
        }
    },
    {
        "id": "CVE-2025-49844-2f43472c",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c",
            "function": "defragStreamConsumerGroup"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 274.0,
            "function_hash": "288446850232562980440863683026214219231"
        }
    },
    {
        "id": "CVE-2025-49844-77eb7a7a",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c",
            "function": "defragStreamConsumerPendingEntry"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 316.0,
            "function_hash": "269273620982420028349368441170132491277"
        }
    },
    {
        "id": "CVE-2025-49844-90636aee",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/ebuckets.c",
            "function": "ebDefragRaxBucket"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 1028.0,
            "function_hash": "278644848284550820802314798222846137842"
        }
    },
    {
        "id": "CVE-2025-49844-9771037c",
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "138051693839747285096021458702403893111",
                "217792725282971082265874066493719589089",
                "314104092114484613540366304337620153799",
                "289838893004834880788220210160086127357",
                "261640981466269970594854736063516974006",
                "310366546339259136490471016273997718966",
                "32133616761046458240624936400794999717",
                "99379125398230922191097416962833631765",
                "141940563608976522218604452044168104567",
                "11220539234012554404348468137403013259",
                "232481408480410736814504528475544114533",
                "51866787026042368566811775065054533143",
                "63433160957720909299274972010261027892",
                "294256383012553041837446580576855146212",
                "89382824653771948252974872163098475979",
                "125843216691037721002607267089725657746",
                "134688872856233222990888740724026394481",
                "48326925826003410695033980425698456909",
                "67996540693667022215470987524713099413",
                "136018837045987266595679134463638862968",
                "333375019022085398980596780008619891568",
                "29915176327139359699601310212482016515",
                "78998988978891701179665002117073134153",
                "17549832641806627852119609812055732197",
                "42446296350911664275182979645220907226",
                "138975645959192329129097852787418759626",
                "149158348708285902087935202222825724476",
                "142605691491218526884160292427755441470",
                "11688604414306184430853572012154672997",
                "148558868641076683043063174755617384651",
                "21028590655927164121484625827791262156",
                "46089719024847428095945812658394875858",
                "132152125759967892984304802846013499407",
                "252710555466710673955941017321669831749",
                "239262572873833474405578058531672783359",
                "66720547795711375935066349761282397334",
                "228824034014002333793286778567671435553",
                "140423370034328928159919286536412352374",
                "34259259009794645587500028432093165186",
                "32714089352387174407290605263289841726",
                "142160850842147572350805881228483295868",
                "232067484793209163755223773554912439711",
                "294077731618297973044671231562754097105",
                "216744741664175839129273154417262477100",
                "995446791351321522154638928135859875",
                "191256389506455193250670539930255527581",
                "302732920957766076804960979292947649450",
                "26025635131505467470119512320366390742"
            ],
            "threshold": 0.9
        }
    },
    {
        "id": "CVE-2025-49844-b3bba80f",
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "src/ebuckets.c"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "244502848865928883332908724730119052311",
                "141797934241402737746765354854429761657",
                "121189225860232617002299124820059699861",
                "325221416935840389820722274695630580016",
                "303490719280172131208887830823944185073",
                "43864785869962988976065089075595503762",
                "53490938445701540411614375924248395921",
                "23408075982072842741195268914820996812",
                "320872889493649556307334100222506094780",
                "244730142365431892013328866901959544225",
                "170283847187515741955371454705299138105",
                "235864933409515329941478345542925607458"
            ],
            "threshold": 0.9
        }
    },
    {
        "id": "CVE-2025-49844-c715e681",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c",
            "function": "activeDefragAlloc"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 307.0,
            "function_hash": "43521981978878587750908260601344872279"
        }
    },
    {
        "id": "CVE-2025-49844-e0301299",
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "deps/lua/src/lparser.c"
        },
        "source": "https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "57570898305689458958332301683931575571",
                "36906201956794226912783182277021364422",
                "206654048748389588612752319617331375802",
                "68762524842066567607259279459644233204",
                "282825045466725342599148073302753308383",
                "152482350335428791735637751027103377835",
                "119984268715756700597320888926724857104",
                "120339940818362166945376559839411645577",
                "32217262958225340175258903683352322637",
                "49635208541836677045240184656187964552"
            ],
            "threshold": 0.9
        }
    },
    {
        "id": "CVE-2025-49844-f6afd884",
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "src/defrag.c",
            "function": "activeDefragHExpiresOB"
        },
        "source": "https://github.com/redis/redis/commit/9829bdbfd9e7eeb8fb6c79ce36bcc77a681824b1",
        "signature_version": "v1",
        "digest": {
            "length": 654.0,
            "function_hash": "307600606145985118090248030247413925373"
        }
    }
]

Git / github.com/valkey-io/valkey

Affected ranges

Type
GIT
Repo
https://github.com/valkey-io/valkey
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
97b6663c775193cce6e41c752e7683f000f80ad5

Affected versions

7.*

7.2.10
7.2.4
7.2.4-rc1
7.2.5
7.2.5-rc1
7.2.6
7.2.7
7.2.8
7.2.9